28743340

素因数分解:

$2^2\times 5^1\times {\mathrm{977}}^1\times {\mathrm{1471}}^1$

素因数の和:2457

約数の個数: 24

約数和(自身を含む): 60463872

約数和(自身を除く): 31720532

約数列:

[1, 2, 4, 5, 10, 20, 977, 1471, 1954, 2942, 3908, 4885, 5884, 7355, 9770, 14710, 19540, 29420, 1437167, 2874334, 5748668, 7185835, 14371670, 28743340]

約数ペア:

[(1, 28743340), (2, 14371670), (4, 7185835), (5, 5748668), (10, 2874334), (20, 1437167), (977, 29420), (1471, 19540), (1954, 14710), (2942, 9770), (3908, 7355), (4885, 5884)]