20027860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32303}}^1$

素因数の和:32343

約数の個数: 24

約数和(自身を含む): 43416576

約数和(自身を除く): 23388716

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32303, 64606, 129212, 161515, 323030, 646060, 1001393, 2002786, 4005572, 5006965, 10013930, 20027860]

約数ペア:

[(1, 20027860), (2, 10013930), (4, 5006965), (5, 4005572), (10, 2002786), (20, 1001393), (31, 646060), (62, 323030), (124, 161515), (155, 129212), (310, 64606), (620, 32303)]