20120309980

素因数分解:

$2^2\times 5^1\times {\mathrm{7297}}^1\times {\mathrm{137867}}^1$

素因数の和:145173

約数の個数: 24

約数和(自身を含む): 42258747888

約数和(自身を除く): 22138437908

約数列:

[1, 2, 4, 5, 10, 20, 7297, 14594, 29188, 36485, 72970, 137867, 145940, 275734, 551468, 689335, 1378670, 2757340, 1006015499, 2012030998, 4024061996, 5030077495, 10060154990, 20120309980]

約数ペア:

[(1, 20120309980), (2, 10060154990), (4, 5030077495), (5, 4024061996), (10, 2012030998), (20, 1006015499), (7297, 2757340), (14594, 1378670), (29188, 689335), (36485, 551468), (72970, 275734), (137867, 145940)]