156495640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{558913}}^1$

素因数の和:558931

約数の個数: 32

約数和(自身を含む): 402418080

約数和(自身を除く): 245922440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 558913, 1117826, 2235652, 2794565, 3912391, 4471304, 5589130, 7824782, 11178260, 15649564, 19561955, 22356520, 31299128, 39123910, 78247820, 156495640]

約数ペア:

[(1, 156495640), (2, 78247820), (4, 39123910), (5, 31299128), (7, 22356520), (8, 19561955), (10, 15649564), (14, 11178260), (20, 7824782), (28, 5589130), (35, 4471304), (40, 3912391), (56, 2794565), (70, 2235652), (140, 1117826), (280, 558913)]