12960020

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{4349}}^1$

素因数の和:4507

約数の個数: 24

約数和(自身を含む): 27405000

約数和(自身を除く): 14444980

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 4349, 8698, 17396, 21745, 43490, 86980, 648001, 1296002, 2592004, 3240005, 6480010, 12960020]

約数ペア:

[(1, 12960020), (2, 6480010), (4, 3240005), (5, 2592004), (10, 1296002), (20, 648001), (149, 86980), (298, 43490), (596, 21745), (745, 17396), (1490, 8698), (2980, 4349)]