1631240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3137}}^1$

素因数の和:3161

約数の個数: 32

約数和(自身を含む): 3953880

約数和(自身を除く): 2322640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 3137, 6274, 12548, 15685, 25096, 31370, 40781, 62740, 81562, 125480, 163124, 203905, 326248, 407810, 815620, 1631240]

約数ペア:

[(1, 1631240), (2, 815620), (4, 407810), (5, 326248), (8, 203905), (10, 163124), (13, 125480), (20, 81562), (26, 62740), (40, 40781), (52, 31370), (65, 25096), (104, 15685), (130, 12548), (260, 6274), (520, 3137)]