81352510

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{769}}^1$

素因数の和:996

約数の個数: 32

約数和(自身を含む): 149688000

約数和(自身を除く): 68335490

約数列:

[1, 2, 5, 10, 71, 142, 149, 298, 355, 710, 745, 769, 1490, 1538, 3845, 7690, 10579, 21158, 52895, 54599, 105790, 109198, 114581, 229162, 272995, 545990, 572905, 1145810, 8135251, 16270502, 40676255, 81352510]

約数ペア:

[(1, 81352510), (2, 40676255), (5, 16270502), (10, 8135251), (71, 1145810), (142, 572905), (149, 545990), (298, 272995), (355, 229162), (710, 114581), (745, 109198), (769, 105790), (1490, 54599), (1538, 52895), (3845, 21158), (7690, 10579)]