71519240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137537}}^1$

素因数の和:137561

約数の個数: 32

約数和(自身を含む): 173297880

約数和(自身を除く): 101778640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 137537, 275074, 550148, 687685, 1100296, 1375370, 1787981, 2750740, 3575962, 5501480, 7151924, 8939905, 14303848, 17879810, 35759620, 71519240]

約数ペア:

[(1, 71519240), (2, 35759620), (4, 17879810), (5, 14303848), (8, 8939905), (10, 7151924), (13, 5501480), (20, 3575962), (26, 2750740), (40, 1787981), (52, 1375370), (65, 1100296), (104, 687685), (130, 550148), (260, 275074), (520, 137537)]