28418728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{1039}}^1$

素因数の和:1321

約数の個数: 32

約数和(自身を含む): 57657600

約数和(自身を除く): 29238872

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 263, 526, 1039, 1052, 2078, 2104, 3419, 4156, 6838, 8312, 13507, 13676, 27014, 27352, 54028, 108056, 273257, 546514, 1093028, 2186056, 3552341, 7104682, 14209364, 28418728]

約数ペア:

[(1, 28418728), (2, 14209364), (4, 7104682), (8, 3552341), (13, 2186056), (26, 1093028), (52, 546514), (104, 273257), (263, 108056), (526, 54028), (1039, 27352), (1052, 27014), (2078, 13676), (2104, 13507), (3419, 8312), (4156, 6838)]