81316528

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{137359}}^1$

素因数の和:137404

約数の個数: 20

約数和(自身を含む): 161810080

約数和(自身を除く): 80493552

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 137359, 274718, 549436, 1098872, 2197744, 5082283, 10164566, 20329132, 40658264, 81316528]

約数ペア:

[(1, 81316528), (2, 40658264), (4, 20329132), (8, 10164566), (16, 5082283), (37, 2197744), (74, 1098872), (148, 549436), (296, 274718), (592, 137359)]