31581290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{8377}}^1$

素因数の和:8426

約数の個数: 32

約数和(自身を含む): 63337680

約数和(自身を除く): 31756390

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 8377, 16754, 41885, 83770, 108901, 217802, 242933, 485866, 544505, 1089010, 1214665, 2429330, 3158129, 6316258, 15790645, 31581290]

約数ペア:

[(1, 31581290), (2, 15790645), (5, 6316258), (10, 3158129), (13, 2429330), (26, 1214665), (29, 1089010), (58, 544505), (65, 485866), (130, 242933), (145, 217802), (290, 108901), (377, 83770), (754, 41885), (1885, 16754), (3770, 8377)]