649742015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{270163}}^1$

素因数の和:270218

約数の個数: 16

約数和(自身を含む): 862363488

約数和(自身を除く): 212621473

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 270163, 1350815, 3512119, 9996031, 17560595, 49980155, 129948403, 649742015]

約数ペア:

[(1, 649742015), (5, 129948403), (13, 49980155), (37, 17560595), (65, 9996031), (185, 3512119), (481, 1350815), (2405, 270163)]