2187980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3529}}^1$

素因数の和:3569

約数の個数: 24

約数和(自身を含む): 4744320

約数和(自身を除く): 2556340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 3529, 7058, 14116, 17645, 35290, 70580, 109399, 218798, 437596, 546995, 1093990, 2187980]

約数ペア:

[(1, 2187980), (2, 1093990), (4, 546995), (5, 437596), (10, 218798), (20, 109399), (31, 70580), (62, 35290), (124, 17645), (155, 14116), (310, 7058), (620, 3529)]