12420040

素因数分解:

$2^3\times 5^1\times {\mathrm{310501}}^1$

素因数の和:310512

約数の個数: 16

約数和(自身を含む): 27945180

約数和(自身を除く): 15525140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 310501, 621002, 1242004, 1552505, 2484008, 3105010, 6210020, 12420040]

約数ペア:

[(1, 12420040), (2, 6210020), (4, 3105010), (5, 2484008), (8, 1552505), (10, 1242004), (20, 621002), (40, 310501)]