12740897980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10443359}}^1$

素因数の和:10443429

約数の個数: 24

約数和(自身を含む): 27194509440

約数和(自身を除く): 14453611460

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 10443359, 20886718, 41773436, 52216795, 104433590, 208867180, 637044899, 1274089798, 2548179596, 3185224495, 6370448990, 12740897980]

約数ペア:

[(1, 12740897980), (2, 6370448990), (4, 3185224495), (5, 2548179596), (10, 1274089798), (20, 637044899), (61, 208867180), (122, 104433590), (244, 52216795), (305, 41773436), (610, 20886718), (1220, 10443359)]