1285451216

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{395767}}^1$

素因数の和:395811

約数の個数: 40

約数和(自身を含む): 2944513920

約数和(自身を除く): 1659062704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 395767, 791534, 1583068, 2770369, 3166136, 5540738, 6332272, 11081476, 11477243, 22162952, 22954486, 44325904, 45908972, 80340701, 91817944, 160681402, 183635888, 321362804, 642725608, 1285451216]

約数ペア:

[(1, 1285451216), (2, 642725608), (4, 321362804), (7, 183635888), (8, 160681402), (14, 91817944), (16, 80340701), (28, 45908972), (29, 44325904), (56, 22954486), (58, 22162952), (112, 11477243), (116, 11081476), (203, 6332272), (232, 5540738), (406, 3166136), (464, 2770369), (812, 1583068), (1624, 791534), (3248, 395767)]