81838680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:570

約数の個数: 256

約数和(自身を含む): 324725760

約数和(自身を除く): 242887080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 17, 20, 21, 22, 24, 28, 30, 33, 34, 35, 40, 42, 44, 51, 55, 56, 60, 66, 68, 70, 77, 84, 85, 88, 102, 105, 110, 119, 120, 132, 136, 140, 154, 165, 168, 170, 187, 204, 210, 220, 231, 238, 255, 264, 280, 308, 330, 340, 357, 374, 385, 408, 420, 440, 462, 476, 510, 521, 561, 595, 616, 660, 680, 714, 748, 770, 840, 924, 935, 952, 1020, 1042, 1122, 1155, 1190, 1309, 1320, 1428, 1496, 1540, 1563, 1785, 1848, 1870, 2040, 2084, 2244, 2310, 2380, 2605, 2618, 2805, 2856, 3080, 3126, 3570, 3647, 3740, 3927, 4168, 4488, 4620, 4760, 5210, 5236, 5610, 5731, 6252, 6545, 7140, 7294, 7480, 7815, 7854, 8857, 9240, 10420, 10472, 10941, 11220, 11462, 12504, 13090, 14280, 14588, 15630, 15708, 17193, 17714, 18235, 19635, 20840, 21882, 22440, 22924, 26180, 26571, 28655, 29176, 31260, 31416, 34386, 35428, 36470, 39270, 40117, 43764, 44285, 45848, 52360, 53142, 54705, 57310, 61999, 62520, 68772, 70856, 72940, 78540, 80234, 85965, 87528, 88570, 97427, 106284, 109410, 114620, 120351, 123998, 132855, 137544, 145880, 157080, 160468, 171930, 177140, 185997, 194854, 200585, 212568, 218820, 229240, 240702, 247996, 265710, 292281, 309995, 320936, 343860, 354280, 371994, 389708, 401170, 437640, 481404, 487135, 495992, 531420, 584562, 601755, 619990, 681989, 687720, 743988, 779416, 802340, 929985, 962808, 974270, 1062840, 1169124, 1203510, 1239980, 1363978, 1461405, 1487976, 1604680, 1859970, 1948540, 2045967, 2338248, 2407020, 2479960, 2727956, 2922810, 3409945, 3719940, 3897080, 4091934, 4814040, 5455912, 5845620, 6819890, 7439880, 8183868, 10229835, 11691240, 13639780, 16367736, 20459670, 27279560, 40919340, 81838680]

約数ペア:

[(1, 81838680), (2, 40919340), (3, 27279560), (4, 20459670), (5, 16367736), (6, 13639780), (7, 11691240), (8, 10229835), (10, 8183868), (11, 7439880), (12, 6819890), (14, 5845620), (15, 5455912), (17, 4814040), (20, 4091934), (21, 3897080), (22, 3719940), (24, 3409945), (28, 2922810), (30, 2727956), (33, 2479960), (34, 2407020), (35, 2338248), (40, 2045967), (42, 1948540), (44, 1859970), (51, 1604680), (55, 1487976), (56, 1461405), (60, 1363978), (66, 1239980), (68, 1203510), (70, 1169124), (77, 1062840), (84, 974270), (85, 962808), (88, 929985), (102, 802340), (105, 779416), (110, 743988), (119, 687720), (120, 681989), (132, 619990), (136, 601755), (140, 584562), (154, 531420), (165, 495992), (168, 487135), (170, 481404), (187, 437640), (204, 401170), (210, 389708), (220, 371994), (231, 354280), (238, 343860), (255, 320936), (264, 309995), (280, 292281), (308, 265710), (330, 247996), (340, 240702), (357, 229240), (374, 218820), (385, 212568), (408, 200585), (420, 194854), (440, 185997), (462, 177140), (476, 171930), (510, 160468), (521, 157080), (561, 145880), (595, 137544), (616, 132855), (660, 123998), (680, 120351), (714, 114620), (748, 109410), (770, 106284), (840, 97427), (924, 88570), (935, 87528), (952, 85965), (1020, 80234), (1042, 78540), (1122, 72940), (1155, 70856), (1190, 68772), (1309, 62520), (1320, 61999), (1428, 57310), (1496, 54705), (1540, 53142), (1563, 52360), (1785, 45848), (1848, 44285), (1870, 43764), (2040, 40117), (2084, 39270), (2244, 36470), (2310, 35428), (2380, 34386), (2605, 31416), (2618, 31260), (2805, 29176), (2856, 28655), (3080, 26571), (3126, 26180), (3570, 22924), (3647, 22440), (3740, 21882), (3927, 20840), (4168, 19635), (4488, 18235), (4620, 17714), (4760, 17193), (5210, 15708), (5236, 15630), (5610, 14588), (5731, 14280), (6252, 13090), (6545, 12504), (7140, 11462), (7294, 11220), (7480, 10941), (7815, 10472), (7854, 10420), (8857, 9240)]