676420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1091}}^1$

素因数の和:1131

約数の個数: 24

約数和(自身を含む): 1467648

約数和(自身を除く): 791228

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1091, 2182, 4364, 5455, 10910, 21820, 33821, 67642, 135284, 169105, 338210, 676420]

約数ペア:

[(1, 676420), (2, 338210), (4, 169105), (5, 135284), (10, 67642), (20, 33821), (31, 21820), (62, 10910), (124, 5455), (155, 4364), (310, 2182), (620, 1091)]