168536420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{648217}}^1$

素因数の和:648239

約数の個数: 24

約数和(自身を含む): 381152184

約数和(自身を除く): 212615764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 648217, 1296434, 2592868, 3241085, 6482170, 8426821, 12964340, 16853642, 33707284, 42134105, 84268210, 168536420]

約数ペア:

[(1, 168536420), (2, 84268210), (4, 42134105), (5, 33707284), (10, 16853642), (13, 12964340), (20, 8426821), (26, 6482170), (52, 3241085), (65, 2592868), (130, 1296434), (260, 648217)]