19641256

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1039}}^1$

素因数の和:1201

約数の個数: 32

約数和(自身を含む): 39312000

約数和(自身を除く): 19670744

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 139, 278, 556, 1039, 1112, 2078, 2363, 4156, 4726, 8312, 9452, 17663, 18904, 35326, 70652, 141304, 144421, 288842, 577684, 1155368, 2455157, 4910314, 9820628, 19641256]

約数ペア:

[(1, 19641256), (2, 9820628), (4, 4910314), (8, 2455157), (17, 1155368), (34, 577684), (68, 288842), (136, 144421), (139, 141304), (278, 70652), (556, 35326), (1039, 18904), (1112, 17663), (2078, 9452), (2363, 8312), (4156, 4726)]