12789160

素因数分解:

$2^3\times 5^1\times {\mathrm{319729}}^1$

素因数の和:319740

約数の個数: 16

約数和(自身を含む): 28775700

約数和(自身を除く): 15986540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 319729, 639458, 1278916, 1598645, 2557832, 3197290, 6394580, 12789160]

約数ペア:

[(1, 12789160), (2, 6394580), (4, 3197290), (5, 2557832), (8, 1598645), (10, 1278916), (20, 639458), (40, 319729)]