61851985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{23209}}^1$

素因数の和:23268

約数の個数: 16

約数和(自身を含む): 81884880

約数和(自身を除く): 20032895

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 23209, 116045, 301717, 951569, 1508585, 4757845, 12370397, 61851985]

約数ペア:

[(1, 61851985), (5, 12370397), (13, 4757845), (41, 1508585), (65, 951569), (205, 301717), (533, 116045), (2665, 23209)]