557740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 1189440

約数和(自身を除く): 631700

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 353, 395, 706, 790, 1412, 1580, 1765, 3530, 7060, 27887, 55774, 111548, 139435, 278870, 557740]

約数ペア:

[(1, 557740), (2, 278870), (4, 139435), (5, 111548), (10, 55774), (20, 27887), (79, 7060), (158, 3530), (316, 1765), (353, 1580), (395, 1412), (706, 790)]