208441660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1488869}}^1$

素因数の和:1488885

約数の個数: 24

約数和(自身を含む): 500260320

約数和(自身を除く): 291818660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1488869, 2977738, 5955476, 7444345, 10422083, 14888690, 20844166, 29777380, 41688332, 52110415, 104220830, 208441660]

約数ペア:

[(1, 208441660), (2, 104220830), (4, 52110415), (5, 41688332), (7, 29777380), (10, 20844166), (14, 14888690), (20, 10422083), (28, 7444345), (35, 5955476), (70, 2977738), (140, 1488869)]