20212751440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^2\times {\mathrm{71}}^1$

素因数の和:199

約数の個数: 360

約数和(自身を含む): 58831484544

約数和(自身を除く): 38618733104

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 71, 80, 92, 112, 115, 124, 140, 142, 155, 161, 184, 217, 230, 248, 280, 284, 310, 322, 355, 368, 434, 460, 496, 497, 529, 560, 568, 620, 644, 710, 713, 805, 868, 920, 961, 994, 1058, 1085, 1136, 1240, 1288, 1420, 1426, 1610, 1633, 1736, 1840, 1922, 1988, 2116, 2170, 2201, 2480, 2485, 2576, 2645, 2840, 2852, 3220, 3266, 3472, 3565, 3703, 3844, 3976, 4232, 4340, 4402, 4805, 4970, 4991, 5290, 5680, 5704, 6440, 6532, 6727, 7130, 7406, 7688, 7952, 8165, 8464, 8680, 8804, 9610, 9940, 9982, 10580, 11005, 11408, 11431, 12880, 13064, 13454, 14260, 14812, 15376, 15407, 16330, 16399, 17360, 17608, 18515, 19220, 19880, 19964, 21160, 22010, 22103, 22862, 24955, 26128, 26908, 28520, 29624, 30814, 32660, 32798, 33635, 35216, 37030, 37559, 38440, 39760, 39928, 42320, 44020, 44206, 45724, 49910, 50623, 53816, 57040, 57155, 59248, 61628, 65320, 65596, 67270, 68231, 74060, 75118, 76880, 77035, 79856, 81995, 88040, 88412, 91448, 99820, 101246, 107632, 110515, 114310, 114793, 123256, 130640, 131192, 134540, 136462, 148120, 150236, 154070, 154721, 163990, 176080, 176824, 182896, 187795, 199640, 202492, 221030, 228620, 229586, 246512, 253115, 262384, 262913, 269080, 272924, 296240, 300472, 308140, 309442, 327980, 341155, 353648, 354361, 375590, 399280, 404984, 442060, 457240, 459172, 477617, 506230, 508369, 525826, 538160, 545848, 573965, 600944, 616280, 618884, 655960, 682310, 708722, 751180, 773605, 809968, 884120, 914480, 918344, 955234, 1012460, 1016738, 1051652, 1091696, 1147930, 1164329, 1232560, 1237768, 1311920, 1314565, 1364620, 1417444, 1502360, 1547210, 1569313, 1768240, 1771805, 1836688, 1910468, 2024920, 2033476, 2103304, 2295860, 2328658, 2388085, 2475536, 2541845, 2629130, 2729240, 2834888, 3004720, 3094420, 3138626, 3543610, 3558583, 3820936, 4049840, 4066952, 4206608, 4591720, 4657316, 4776170, 5083690, 5258260, 5458480, 5669776, 5821645, 6188840, 6277252, 7087220, 7117166, 7641872, 7846565, 8133904, 8150303, 9183440, 9314632, 9552340, 10167380, 10516520, 10985191, 11643290, 12377680, 12554504, 14174440, 14234332, 15693130, 16300606, 17792915, 18629264, 19104680, 20334760, 21033040, 21970382, 23286580, 25109008, 28348880, 28468664, 31386260, 32601212, 35585830, 36094199, 38209360, 40669520, 40751515, 43940764, 46573160, 54925955, 56937328, 62772520, 65202424, 71171660, 72188398, 81503030, 87881528, 93146320, 109851910, 125545040, 130404848, 142343320, 144376796, 163006060, 175763056, 180470995, 219703820, 252659393, 284686640, 288753592, 326012120, 360941990, 439407640, 505318786, 577507184, 652024240, 721883980, 878815280, 1010637572, 1263296965, 1443767960, 2021275144, 2526593930, 2887535920, 4042550288, 5053187860, 10106375720, 20212751440]

約数ペア:

[(1, 20212751440), (2, 10106375720), (4, 5053187860), (5, 4042550288), (7, 2887535920), (8, 2526593930), (10, 2021275144), (14, 1443767960), (16, 1263296965), (20, 1010637572), (23, 878815280), (28, 721883980), (31, 652024240), (35, 577507184), (40, 505318786), (46, 439407640), (56, 360941990), (62, 326012120), (70, 288753592), (71, 284686640), (80, 252659393), (92, 219703820), (112, 180470995), (115, 175763056), (124, 163006060), (140, 144376796), (142, 142343320), (155, 130404848), (161, 125545040), (184, 109851910), (217, 93146320), (230, 87881528), (248, 81503030), (280, 72188398), (284, 71171660), (310, 65202424), (322, 62772520), (355, 56937328), (368, 54925955), (434, 46573160), (460, 43940764), (496, 40751515), (497, 40669520), (529, 38209360), (560, 36094199), (568, 35585830), (620, 32601212), (644, 31386260), (710, 28468664), (713, 28348880), (805, 25109008), (868, 23286580), (920, 21970382), (961, 21033040), (994, 20334760), (1058, 19104680), (1085, 18629264), (1136, 17792915), (1240, 16300606), (1288, 15693130), (1420, 14234332), (1426, 14174440), (1610, 12554504), (1633, 12377680), (1736, 11643290), (1840, 10985191), (1922, 10516520), (1988, 10167380), (2116, 9552340), (2170, 9314632), (2201, 9183440), (2480, 8150303), (2485, 8133904), (2576, 7846565), (2645, 7641872), (2840, 7117166), (2852, 7087220), (3220, 6277252), (3266, 6188840), (3472, 5821645), (3565, 5669776), (3703, 5458480), (3844, 5258260), (3976, 5083690), (4232, 4776170), (4340, 4657316), (4402, 4591720), (4805, 4206608), (4970, 4066952), (4991, 4049840), (5290, 3820936), (5680, 3558583), (5704, 3543610), (6440, 3138626), (6532, 3094420), (6727, 3004720), (7130, 2834888), (7406, 2729240), (7688, 2629130), (7952, 2541845), (8165, 2475536), (8464, 2388085), (8680, 2328658), (8804, 2295860), (9610, 2103304), (9940, 2033476), (9982, 2024920), (10580, 1910468), (11005, 1836688), (11408, 1771805), (11431, 1768240), (12880, 1569313), (13064, 1547210), (13454, 1502360), (14260, 1417444), (14812, 1364620), (15376, 1314565), (15407, 1311920), (16330, 1237768), (16399, 1232560), (17360, 1164329), (17608, 1147930), (18515, 1091696), (19220, 1051652), (19880, 1016738), (19964, 1012460), (21160, 955234), (22010, 918344), (22103, 914480), (22862, 884120), (24955, 809968), (26128, 773605), (26908, 751180), (28520, 708722), (29624, 682310), (30814, 655960), (32660, 618884), (32798, 616280), (33635, 600944), (35216, 573965), (37030, 545848), (37559, 538160), (38440, 525826), (39760, 508369), (39928, 506230), (42320, 477617), (44020, 459172), (44206, 457240), (45724, 442060), (49910, 404984), (50623, 399280), (53816, 375590), (57040, 354361), (57155, 353648), (59248, 341155), (61628, 327980), (65320, 309442), (65596, 308140), (67270, 300472), (68231, 296240), (74060, 272924), (75118, 269080), (76880, 262913), (77035, 262384), (79856, 253115), (81995, 246512), (88040, 229586), (88412, 228620), (91448, 221030), (99820, 202492), (101246, 199640), (107632, 187795), (110515, 182896), (114310, 176824), (114793, 176080), (123256, 163990), (130640, 154721), (131192, 154070), (134540, 150236), (136462, 148120)]