28640404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 56573440

約数和(自身を除く): 27933036

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 109, 124, 163, 218, 326, 403, 436, 652, 806, 1417, 1612, 2119, 2834, 3379, 4238, 5053, 5668, 6758, 8476, 10106, 13516, 17767, 20212, 35534, 43927, 65689, 71068, 87854, 131378, 175708, 230971, 262756, 461942, 550777, 923884, 1101554, 2203108, 7160101, 14320202, 28640404]

約数ペア:

[(1, 28640404), (2, 14320202), (4, 7160101), (13, 2203108), (26, 1101554), (31, 923884), (52, 550777), (62, 461942), (109, 262756), (124, 230971), (163, 175708), (218, 131378), (326, 87854), (403, 71068), (436, 65689), (652, 43927), (806, 35534), (1417, 20212), (1612, 17767), (2119, 13516), (2834, 10106), (3379, 8476), (4238, 6758), (5053, 5668)]