90205940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{787}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 207313344

約数和(自身を除く): 117107404

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 521, 787, 1042, 1574, 2084, 2605, 3148, 3935, 5210, 5731, 7870, 8657, 10420, 11462, 15740, 17314, 22924, 28655, 34628, 43285, 57310, 86570, 114620, 173140, 410027, 820054, 1640108, 2050135, 4100270, 4510297, 8200540, 9020594, 18041188, 22551485, 45102970, 90205940]

約数ペア:

[(1, 90205940), (2, 45102970), (4, 22551485), (5, 18041188), (10, 9020594), (11, 8200540), (20, 4510297), (22, 4100270), (44, 2050135), (55, 1640108), (110, 820054), (220, 410027), (521, 173140), (787, 114620), (1042, 86570), (1574, 57310), (2084, 43285), (2605, 34628), (3148, 28655), (3935, 22924), (5210, 17314), (5731, 15740), (7870, 11462), (8657, 10420)]