131036740

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{21067}}^1$

素因数の和:21387

約数の個数: 24

約数和(自身を含む): 276075072

約数和(自身を除く): 145038332

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 21067, 42134, 84268, 105335, 210670, 421340, 6551837, 13103674, 26207348, 32759185, 65518370, 131036740]

約数ペア:

[(1, 131036740), (2, 65518370), (4, 32759185), (5, 26207348), (10, 13103674), (20, 6551837), (311, 421340), (622, 210670), (1244, 105335), (1555, 84268), (3110, 42134), (6220, 21067)]