217928480

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{19}}^2$

素因数の和:85

約数の個数: 288

約数和(自身を含む): 691286400

約数和(自身を除く): 473357920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 32, 35, 38, 40, 44, 49, 55, 56, 70, 76, 77, 80, 88, 95, 98, 110, 112, 133, 140, 152, 154, 160, 176, 190, 196, 209, 220, 224, 245, 266, 280, 304, 308, 343, 352, 361, 380, 385, 392, 418, 440, 490, 532, 539, 560, 608, 616, 665, 686, 722, 760, 770, 784, 836, 880, 931, 980, 1045, 1064, 1078, 1120, 1232, 1330, 1372, 1444, 1463, 1520, 1540, 1568, 1672, 1715, 1760, 1805, 1862, 1960, 2090, 2128, 2156, 2464, 2527, 2660, 2695, 2744, 2888, 2926, 3040, 3080, 3344, 3430, 3610, 3724, 3773, 3920, 3971, 4180, 4256, 4312, 4655, 5054, 5320, 5390, 5488, 5776, 5852, 6160, 6517, 6688, 6860, 7220, 7315, 7448, 7546, 7840, 7942, 8360, 8624, 9310, 10108, 10241, 10640, 10780, 10976, 11552, 11704, 12320, 12635, 13034, 13720, 14440, 14630, 14896, 15092, 15884, 16720, 17248, 17689, 18620, 18865, 19855, 20216, 20482, 21280, 21560, 23408, 25270, 26068, 27440, 27797, 28880, 29260, 29792, 30184, 31768, 32585, 33440, 35378, 37240, 37730, 39710, 40432, 40964, 43120, 46816, 50540, 51205, 52136, 54880, 55594, 57760, 58520, 60368, 63536, 65170, 70756, 71687, 74480, 75460, 79420, 80864, 81928, 86240, 88445, 101080, 102410, 104272, 111188, 117040, 120736, 123823, 127072, 130340, 138985, 141512, 143374, 148960, 150920, 158840, 163856, 176890, 194579, 202160, 204820, 208544, 222376, 234080, 247646, 260680, 277970, 283024, 286748, 301840, 317680, 327712, 353780, 358435, 389158, 404320, 409640, 444752, 495292, 521360, 555940, 566048, 573496, 603680, 619115, 635360, 707560, 716870, 778316, 819280, 889504, 972895, 990584, 1042720, 1111880, 1146992, 1238230, 1362053, 1415120, 1433740, 1556632, 1638560, 1945790, 1981168, 2223760, 2293984, 2476460, 2724106, 2830240, 2867480, 3113264, 3891580, 3962336, 4447520, 4952920, 5448212, 5734960, 6226528, 6810265, 7783160, 9905840, 10896424, 11469920, 13620530, 15566320, 19811680, 21792848, 27241060, 31132640, 43585696, 54482120, 108964240, 217928480]

約数ペア:

[(1, 217928480), (2, 108964240), (4, 54482120), (5, 43585696), (7, 31132640), (8, 27241060), (10, 21792848), (11, 19811680), (14, 15566320), (16, 13620530), (19, 11469920), (20, 10896424), (22, 9905840), (28, 7783160), (32, 6810265), (35, 6226528), (38, 5734960), (40, 5448212), (44, 4952920), (49, 4447520), (55, 3962336), (56, 3891580), (70, 3113264), (76, 2867480), (77, 2830240), (80, 2724106), (88, 2476460), (95, 2293984), (98, 2223760), (110, 1981168), (112, 1945790), (133, 1638560), (140, 1556632), (152, 1433740), (154, 1415120), (160, 1362053), (176, 1238230), (190, 1146992), (196, 1111880), (209, 1042720), (220, 990584), (224, 972895), (245, 889504), (266, 819280), (280, 778316), (304, 716870), (308, 707560), (343, 635360), (352, 619115), (361, 603680), (380, 573496), (385, 566048), (392, 555940), (418, 521360), (440, 495292), (490, 444752), (532, 409640), (539, 404320), (560, 389158), (608, 358435), (616, 353780), (665, 327712), (686, 317680), (722, 301840), (760, 286748), (770, 283024), (784, 277970), (836, 260680), (880, 247646), (931, 234080), (980, 222376), (1045, 208544), (1064, 204820), (1078, 202160), (1120, 194579), (1232, 176890), (1330, 163856), (1372, 158840), (1444, 150920), (1463, 148960), (1520, 143374), (1540, 141512), (1568, 138985), (1672, 130340), (1715, 127072), (1760, 123823), (1805, 120736), (1862, 117040), (1960, 111188), (2090, 104272), (2128, 102410), (2156, 101080), (2464, 88445), (2527, 86240), (2660, 81928), (2695, 80864), (2744, 79420), (2888, 75460), (2926, 74480), (3040, 71687), (3080, 70756), (3344, 65170), (3430, 63536), (3610, 60368), (3724, 58520), (3773, 57760), (3920, 55594), (3971, 54880), (4180, 52136), (4256, 51205), (4312, 50540), (4655, 46816), (5054, 43120), (5320, 40964), (5390, 40432), (5488, 39710), (5776, 37730), (5852, 37240), (6160, 35378), (6517, 33440), (6688, 32585), (6860, 31768), (7220, 30184), (7315, 29792), (7448, 29260), (7546, 28880), (7840, 27797), (7942, 27440), (8360, 26068), (8624, 25270), (9310, 23408), (10108, 21560), (10241, 21280), (10640, 20482), (10780, 20216), (10976, 19855), (11552, 18865), (11704, 18620), (12320, 17689), (12635, 17248), (13034, 16720), (13720, 15884), (14440, 15092), (14630, 14896)]