8705679.00000000

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40637}}^1$

素因数の和:40661

約数の個数: 32

約数和(自身を含む): 51203880

約数和(自身を除く): 30072640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 40637, 81274, 162548, 203185, 325096, 406370, 528281, 812740, 1056562, 1625480, 2113124, 2641405, 4226248, 5282810, 10565620, 21131240]

約数ペア:

[(1, 21131240), (2, 10565620), (4, 5282810), (5, 4226248), (8, 2641405), (10, 2113124), (13, 1625480), (20, 1056562), (26, 812740), (40, 528281), (52, 406370), (65, 325096), (104, 203185), (130, 162548), (260, 81274), (520, 40637)]