12988495

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{809}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 17787600

約数和(自身を除く): 4799105

約数列:

[1, 5, 13, 19, 65, 95, 169, 247, 809, 845, 1235, 3211, 4045, 10517, 15371, 16055, 52585, 76855, 136721, 199823, 683605, 999115, 2597699, 12988495]

約数ペア:

[(1, 12988495), (5, 2597699), (13, 999115), (19, 683605), (65, 199823), (95, 136721), (169, 76855), (247, 52585), (809, 16055), (845, 15371), (1235, 10517), (3211, 4045)]