321819680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:120

約数の個数: 288

約数和(自身を含む): 1008951552

約数和(自身を除く): 687131872

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 23, 26, 28, 31, 32, 35, 40, 46, 52, 56, 62, 65, 70, 80, 91, 92, 104, 112, 115, 124, 130, 140, 155, 160, 161, 182, 184, 208, 217, 224, 230, 248, 260, 280, 299, 310, 322, 364, 368, 403, 416, 434, 455, 460, 496, 520, 560, 598, 620, 644, 713, 728, 736, 805, 806, 868, 910, 920, 961, 992, 1040, 1085, 1120, 1196, 1240, 1288, 1426, 1456, 1495, 1610, 1612, 1736, 1820, 1840, 1922, 2015, 2080, 2093, 2170, 2392, 2480, 2576, 2821, 2852, 2912, 2990, 3220, 3224, 3472, 3565, 3640, 3680, 3844, 4030, 4186, 4340, 4784, 4805, 4960, 4991, 5152, 5642, 5704, 5980, 6440, 6448, 6727, 6944, 7130, 7280, 7688, 8060, 8372, 8680, 9269, 9568, 9610, 9982, 10465, 11284, 11408, 11960, 12493, 12880, 12896, 13454, 14105, 14260, 14560, 15376, 16120, 16744, 17360, 18538, 19220, 19964, 20930, 22103, 22568, 22816, 23920, 24955, 24986, 25760, 26908, 28210, 28520, 30752, 32240, 33488, 33635, 34720, 37076, 38440, 39928, 41860, 44206, 45136, 46345, 47840, 49910, 49972, 53816, 56420, 57040, 62465, 64480, 64883, 66976, 67270, 74152, 76880, 79856, 83720, 87451, 88412, 90272, 92690, 99820, 99944, 107632, 110515, 112840, 114080, 124930, 129766, 134540, 148304, 153760, 154721, 159712, 167440, 174902, 176824, 185380, 199640, 199888, 215264, 221030, 225680, 249860, 259532, 269080, 287339, 296608, 309442, 324415, 334880, 349804, 353648, 370760, 399280, 399776, 437255, 442060, 451360, 499720, 519064, 538160, 574678, 618884, 648830, 699608, 707296, 741520, 773605, 798560, 874510, 884120, 999440, 1038128, 1076320, 1149356, 1237768, 1297660, 1399216, 1436695, 1483040, 1547210, 1749020, 1768240, 1998880, 2011373, 2076256, 2298712, 2475536, 2595320, 2798432, 2873390, 3094420, 3498040, 3536480, 4022746, 4597424, 4951072, 5190640, 5746780, 6188840, 6996080, 8045492, 9194848, 10056865, 10381280, 11493560, 12377680, 13992160, 16090984, 20113730, 22987120, 24755360, 32181968, 40227460, 45974240, 64363936, 80454920, 160909840, 321819680]

約数ペア:

[(1, 321819680), (2, 160909840), (4, 80454920), (5, 64363936), (7, 45974240), (8, 40227460), (10, 32181968), (13, 24755360), (14, 22987120), (16, 20113730), (20, 16090984), (23, 13992160), (26, 12377680), (28, 11493560), (31, 10381280), (32, 10056865), (35, 9194848), (40, 8045492), (46, 6996080), (52, 6188840), (56, 5746780), (62, 5190640), (65, 4951072), (70, 4597424), (80, 4022746), (91, 3536480), (92, 3498040), (104, 3094420), (112, 2873390), (115, 2798432), (124, 2595320), (130, 2475536), (140, 2298712), (155, 2076256), (160, 2011373), (161, 1998880), (182, 1768240), (184, 1749020), (208, 1547210), (217, 1483040), (224, 1436695), (230, 1399216), (248, 1297660), (260, 1237768), (280, 1149356), (299, 1076320), (310, 1038128), (322, 999440), (364, 884120), (368, 874510), (403, 798560), (416, 773605), (434, 741520), (455, 707296), (460, 699608), (496, 648830), (520, 618884), (560, 574678), (598, 538160), (620, 519064), (644, 499720), (713, 451360), (728, 442060), (736, 437255), (805, 399776), (806, 399280), (868, 370760), (910, 353648), (920, 349804), (961, 334880), (992, 324415), (1040, 309442), (1085, 296608), (1120, 287339), (1196, 269080), (1240, 259532), (1288, 249860), (1426, 225680), (1456, 221030), (1495, 215264), (1610, 199888), (1612, 199640), (1736, 185380), (1820, 176824), (1840, 174902), (1922, 167440), (2015, 159712), (2080, 154721), (2093, 153760), (2170, 148304), (2392, 134540), (2480, 129766), (2576, 124930), (2821, 114080), (2852, 112840), (2912, 110515), (2990, 107632), (3220, 99944), (3224, 99820), (3472, 92690), (3565, 90272), (3640, 88412), (3680, 87451), (3844, 83720), (4030, 79856), (4186, 76880), (4340, 74152), (4784, 67270), (4805, 66976), (4960, 64883), (4991, 64480), (5152, 62465), (5642, 57040), (5704, 56420), (5980, 53816), (6440, 49972), (6448, 49910), (6727, 47840), (6944, 46345), (7130, 45136), (7280, 44206), (7688, 41860), (8060, 39928), (8372, 38440), (8680, 37076), (9269, 34720), (9568, 33635), (9610, 33488), (9982, 32240), (10465, 30752), (11284, 28520), (11408, 28210), (11960, 26908), (12493, 25760), (12880, 24986), (12896, 24955), (13454, 23920), (14105, 22816), (14260, 22568), (14560, 22103), (15376, 20930), (16120, 19964), (16744, 19220), (17360, 18538)]