201311240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{387137}}^1$

素因数の和:387161

約数の個数: 32

約数和(自身を含む): 487793880

約数和(自身を除く): 286482640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 387137, 774274, 1548548, 1935685, 3097096, 3871370, 5032781, 7742740, 10065562, 15485480, 20131124, 25163905, 40262248, 50327810, 100655620, 201311240]

約数ペア:

[(1, 201311240), (2, 100655620), (4, 50327810), (5, 40262248), (8, 25163905), (10, 20131124), (13, 15485480), (20, 10065562), (26, 7742740), (40, 5032781), (52, 3871370), (65, 3097096), (104, 1935685), (130, 1548548), (260, 774274), (520, 387137)]