1261499905

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{521}}^1\times {\mathrm{9137}}^1$

素因数の和:9716

約数の個数: 16

約数和(自身を含む): 1545491664

約数和(自身を除く): 283991759

約数列:

[1, 5, 53, 265, 521, 2605, 9137, 27613, 45685, 138065, 484261, 2421305, 4760377, 23801885, 252299981, 1261499905]

約数ペア:

[(1, 1261499905), (5, 252299981), (53, 23801885), (265, 4760377), (521, 2421305), (2605, 484261), (9137, 138065), (27613, 45685)]