15615665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 21348096

約数和(自身を除く): 5732431

約数列:

[1, 5, 13, 37, 43, 65, 151, 185, 215, 481, 559, 755, 1591, 1963, 2405, 2795, 5587, 6493, 7955, 9815, 20683, 27935, 32465, 72631, 84409, 103415, 240241, 363155, 422045, 1201205, 3123133, 15615665]

約数ペア:

[(1, 15615665), (5, 3123133), (13, 1201205), (37, 422045), (43, 363155), (65, 240241), (151, 103415), (185, 84409), (215, 72631), (481, 32465), (559, 27935), (755, 20683), (1591, 9815), (1963, 7955), (2405, 6493), (2795, 5587)]