278404

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:235

約数の個数: 24

約数和(自身を含む): 569408

約数和(自身を除く): 291004

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 163, 244, 326, 427, 652, 854, 1141, 1708, 2282, 4564, 9943, 19886, 39772, 69601, 139202, 278404]

約数ペア:

[(1, 278404), (2, 139202), (4, 69601), (7, 39772), (14, 19886), (28, 9943), (61, 4564), (122, 2282), (163, 1708), (244, 1141), (326, 854), (427, 652)]