13121060

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21163}}^1$

素因数の和:21203

約数の個数: 24

約数和(自身を含む): 28444416

約数和(自身を除く): 15323356

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 21163, 42326, 84652, 105815, 211630, 423260, 656053, 1312106, 2624212, 3280265, 6560530, 13121060]

約数ペア:

[(1, 13121060), (2, 6560530), (4, 3280265), (5, 2624212), (10, 1312106), (20, 656053), (31, 423260), (62, 211630), (124, 105815), (155, 84652), (310, 42326), (620, 21163)]