20456120

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2857}}^1$

素因数の和:3047

約数の個数: 32

約数和(自身を含む): 46299600

約数和(自身を除く): 25843480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 2857, 3580, 5714, 7160, 11428, 14285, 22856, 28570, 57140, 114280, 511403, 1022806, 2045612, 2557015, 4091224, 5114030, 10228060, 20456120]

約数ペア:

[(1, 20456120), (2, 10228060), (4, 5114030), (5, 4091224), (8, 2557015), (10, 2045612), (20, 1022806), (40, 511403), (179, 114280), (358, 57140), (716, 28570), (895, 22856), (1432, 14285), (1790, 11428), (2857, 7160), (3580, 5714)]