1288256980

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{432301}}^1$

素因数の和:432459

約数の個数: 24

約数和(自身を含む): 2723502600

約数和(自身を除く): 1435245620

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 432301, 864602, 1729204, 2161505, 4323010, 8646020, 64412849, 128825698, 257651396, 322064245, 644128490, 1288256980]

約数ペア:

[(1, 1288256980), (2, 644128490), (4, 322064245), (5, 257651396), (10, 128825698), (20, 64412849), (149, 8646020), (298, 4323010), (596, 2161505), (745, 1729204), (1490, 864602), (2980, 432301)]