168539540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{648229}}^1$

素因数の和:648251

約数の個数: 24

約数和(自身を含む): 381159240

約数和(自身を除く): 212619700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 648229, 1296458, 2592916, 3241145, 6482290, 8426977, 12964580, 16853954, 33707908, 42134885, 84269770, 168539540]

約数ペア:

[(1, 168539540), (2, 84269770), (4, 42134885), (5, 33707908), (10, 16853954), (13, 12964580), (20, 8426977), (26, 6482290), (52, 3241145), (65, 2592916), (130, 1296458), (260, 648229)]