89956420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{145091}}^1$

素因数の和:145131

約数の個数: 24

約数和(自身を含む): 195003648

約数和(自身を除く): 105047228

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 145091, 290182, 580364, 725455, 1450910, 2901820, 4497821, 8995642, 17991284, 22489105, 44978210, 89956420]

約数ペア:

[(1, 89956420), (2, 44978210), (4, 22489105), (5, 17991284), (10, 8995642), (20, 4497821), (31, 2901820), (62, 1450910), (124, 725455), (155, 580364), (310, 290182), (620, 145091)]