71680505

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{2069}}^1$

素因数の和:2141

約数の個数: 24

約数和(自身を含む): 95460120

約数和(自身を除く): 23779615

約数列:

[1, 5, 13, 41, 65, 169, 205, 533, 845, 2069, 2665, 6929, 10345, 26897, 34645, 84829, 134485, 349661, 424145, 1102777, 1748305, 5513885, 14336101, 71680505]

約数ペア:

[(1, 71680505), (5, 14336101), (13, 5513885), (41, 1748305), (65, 1102777), (169, 424145), (205, 349661), (533, 134485), (845, 84829), (2069, 34645), (2665, 26897), (6929, 10345)]