20211886520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10312187}}^1$

素因数の和:10312212

約数の個数: 48

約数和(自身を含む): 52901524440

約数和(自身を除く): 32689637920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10312187, 20624374, 41248748, 51560935, 72185309, 82497496, 103121870, 144370618, 206243740, 288741236, 360926545, 412487480, 505297163, 577482472, 721853090, 1010594326, 1443706180, 2021188652, 2526485815, 2887412360, 4042377304, 5052971630, 10105943260, 20211886520]

約数ペア:

[(1, 20211886520), (2, 10105943260), (4, 5052971630), (5, 4042377304), (7, 2887412360), (8, 2526485815), (10, 2021188652), (14, 1443706180), (20, 1010594326), (28, 721853090), (35, 577482472), (40, 505297163), (49, 412487480), (56, 360926545), (70, 288741236), (98, 206243740), (140, 144370618), (196, 103121870), (245, 82497496), (280, 72185309), (392, 51560935), (490, 41248748), (980, 20624374), (1960, 10312187)]