30991010

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{99971}}^1$

素因数の和:100009

約数の個数: 16

約数和(自身を含む): 57583872

約数和(自身を除く): 26592862

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 99971, 199942, 499855, 999710, 3099101, 6198202, 15495505, 30991010]

約数ペア:

[(1, 30991010), (2, 15495505), (5, 6198202), (10, 3099101), (31, 999710), (62, 499855), (155, 199942), (310, 99971)]