20569240

素因数分解:

$2^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{2207}}^1$

素因数の和:2451

約数の個数: 32

約数和(自身を含む): 46500480

約数和(自身を除く): 25931240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 233, 466, 932, 1165, 1864, 2207, 2330, 4414, 4660, 8828, 9320, 11035, 17656, 22070, 44140, 88280, 514231, 1028462, 2056924, 2571155, 4113848, 5142310, 10284620, 20569240]

約数ペア:

[(1, 20569240), (2, 10284620), (4, 5142310), (5, 4113848), (8, 2571155), (10, 2056924), (20, 1028462), (40, 514231), (233, 88280), (466, 44140), (932, 22070), (1165, 17656), (1864, 11035), (2207, 9320), (2330, 8828), (4414, 4660)]