664124876

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{509}}^1\times {\mathrm{4129}}^1$

素因数の和:4721

約数の個数: 24

約数和(自身を含む): 1179528000

約数和(自身を除く): 515403124

約数列:

[1, 2, 4, 79, 158, 316, 509, 1018, 2036, 4129, 8258, 16516, 40211, 80422, 160844, 326191, 652382, 1304764, 2101661, 4203322, 8406644, 166031219, 332062438, 664124876]

約数ペア:

[(1, 664124876), (2, 332062438), (4, 166031219), (79, 8406644), (158, 4203322), (316, 2101661), (509, 1304764), (1018, 652382), (2036, 326191), (4129, 160844), (8258, 80422), (16516, 40211)]