28367180

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{5393}}^1$

素因数の和:5665

約数の個数: 24

約数和(自身を含む): 59808672

約数和(自身を除く): 31441492

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 5260, 5393, 10786, 21572, 26965, 53930, 107860, 1418359, 2836718, 5673436, 7091795, 14183590, 28367180]

約数ペア:

[(1, 28367180), (2, 14183590), (4, 7091795), (5, 5673436), (10, 2836718), (20, 1418359), (263, 107860), (526, 53930), (1052, 26965), (1315, 21572), (2630, 10786), (5260, 5393)]