208667780

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{221987}}^1$

素因数の和:222043

約数の個数: 24

約数和(自身を含む): 447527808

約数和(自身を除く): 238860028

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 221987, 443974, 887948, 1109935, 2219870, 4439740, 10433389, 20866778, 41733556, 52166945, 104333890, 208667780]

約数ペア:

[(1, 208667780), (2, 104333890), (4, 52166945), (5, 41733556), (10, 20866778), (20, 10433389), (47, 4439740), (94, 2219870), (188, 1109935), (235, 887948), (470, 443974), (940, 221987)]