5131240

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{787}}^1$

素因数の和:961

約数の個数: 32

約数和(自身を含む): 11630880

約数和(自身を除く): 6499640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 787, 815, 1304, 1574, 1630, 3148, 3260, 3935, 6296, 6520, 7870, 15740, 31480, 128281, 256562, 513124, 641405, 1026248, 1282810, 2565620, 5131240]

約数ペア:

[(1, 5131240), (2, 2565620), (4, 1282810), (5, 1026248), (8, 641405), (10, 513124), (20, 256562), (40, 128281), (163, 31480), (326, 15740), (652, 7870), (787, 6520), (815, 6296), (1304, 3935), (1574, 3260), (1630, 3148)]