904830040

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{53731}}^1$

素因数の和:54163

約数の個数: 32

約数和(自身を含む): 2040741360

約数和(自身を除く): 1135911320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 16840, 53731, 107462, 214924, 268655, 429848, 537310, 1074620, 2149240, 22620751, 45241502, 90483004, 113103755, 180966008, 226207510, 452415020, 904830040]

約数ペア:

[(1, 904830040), (2, 452415020), (4, 226207510), (5, 180966008), (8, 113103755), (10, 90483004), (20, 45241502), (40, 22620751), (421, 2149240), (842, 1074620), (1684, 537310), (2105, 429848), (3368, 268655), (4210, 214924), (8420, 107462), (16840, 53731)]