68790215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{28603}}^1$

素因数の和:28658

約数の個数: 16

約数和(自身を含む): 91303968

約数和(自身を除く): 22513753

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 28603, 143015, 371839, 1058311, 1859195, 5291555, 13758043, 68790215]

約数ペア:

[(1, 68790215), (5, 13758043), (13, 5291555), (37, 1859195), (65, 1058311), (185, 371839), (481, 143015), (2405, 28603)]