31881080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{941}}^1$

素因数の和:981

約数の個数: 96

約数和(自身を含む): 90205920

約数和(自身を除く): 58324840

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 121, 140, 154, 220, 242, 280, 308, 385, 440, 484, 605, 616, 770, 847, 941, 968, 1210, 1540, 1694, 1882, 2420, 3080, 3388, 3764, 4235, 4705, 4840, 6587, 6776, 7528, 8470, 9410, 10351, 13174, 16940, 18820, 20702, 26348, 32935, 33880, 37640, 41404, 51755, 52696, 65870, 72457, 82808, 103510, 113861, 131740, 144914, 207020, 227722, 263480, 289828, 362285, 414040, 455444, 569305, 579656, 724570, 797027, 910888, 1138610, 1449140, 1594054, 2277220, 2898280, 3188108, 3985135, 4554440, 6376216, 7970270, 15940540, 31881080]

約数ペア:

[(1, 31881080), (2, 15940540), (4, 7970270), (5, 6376216), (7, 4554440), (8, 3985135), (10, 3188108), (11, 2898280), (14, 2277220), (20, 1594054), (22, 1449140), (28, 1138610), (35, 910888), (40, 797027), (44, 724570), (55, 579656), (56, 569305), (70, 455444), (77, 414040), (88, 362285), (110, 289828), (121, 263480), (140, 227722), (154, 207020), (220, 144914), (242, 131740), (280, 113861), (308, 103510), (385, 82808), (440, 72457), (484, 65870), (605, 52696), (616, 51755), (770, 41404), (847, 37640), (941, 33880), (968, 32935), (1210, 26348), (1540, 20702), (1694, 18820), (1882, 16940), (2420, 13174), (3080, 10351), (3388, 9410), (3764, 8470), (4235, 7528), (4705, 6776), (4840, 6587)]