257496956

素因数分解:

$2^2\times {\mathrm{157}}^1\times {\mathrm{521}}^1\times {\mathrm{787}}^1$

素因数の和:1469

約数の個数: 24

約数和(自身を含む): 454937616

約数和(自身を除く): 197440660

約数列:

[1, 2, 4, 157, 314, 521, 628, 787, 1042, 1574, 2084, 3148, 81797, 123559, 163594, 247118, 327188, 410027, 494236, 820054, 1640108, 64374239, 128748478, 257496956]

約数ペア:

[(1, 257496956), (2, 128748478), (4, 64374239), (157, 1640108), (314, 820054), (521, 494236), (628, 410027), (787, 327188), (1042, 247118), (1574, 163594), (2084, 123559), (3148, 81797)]