1640697080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{30817}}^1$

素因数の和:30861

約数の個数: 64

約数和(自身を含む): 4060579680

約数和(自身を除く): 2419882600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 1331, 2420, 2662, 4840, 5324, 6655, 10648, 13310, 26620, 30817, 53240, 61634, 123268, 154085, 246536, 308170, 338987, 616340, 677974, 1232680, 1355948, 1694935, 2711896, 3389870, 3728857, 6779740, 7457714, 13559480, 14915428, 18644285, 29830856, 37288570, 41017427, 74577140, 82034854, 149154280, 164069708, 205087135, 328139416, 410174270, 820348540, 1640697080]

約数ペア:

[(1, 1640697080), (2, 820348540), (4, 410174270), (5, 328139416), (8, 205087135), (10, 164069708), (11, 149154280), (20, 82034854), (22, 74577140), (40, 41017427), (44, 37288570), (55, 29830856), (88, 18644285), (110, 14915428), (121, 13559480), (220, 7457714), (242, 6779740), (440, 3728857), (484, 3389870), (605, 2711896), (968, 1694935), (1210, 1355948), (1331, 1232680), (2420, 677974), (2662, 616340), (4840, 338987), (5324, 308170), (6655, 246536), (10648, 154085), (13310, 123268), (26620, 61634), (30817, 53240)]