20138644100

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{2262769}}^1$

素因数の和:2262872

約数の個数: 36

約数和(自身を含む): 44191898100

約数和(自身を除く): 24053254000

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1780, 2225, 4450, 8900, 2262769, 4525538, 9051076, 11313845, 22627690, 45255380, 56569225, 113138450, 201386441, 226276900, 402772882, 805545764, 1006932205, 2013864410, 4027728820, 5034661025, 10069322050, 20138644100]

約数ペア:

[(1, 20138644100), (2, 10069322050), (4, 5034661025), (5, 4027728820), (10, 2013864410), (20, 1006932205), (25, 805545764), (50, 402772882), (89, 226276900), (100, 201386441), (178, 113138450), (356, 56569225), (445, 45255380), (890, 22627690), (1780, 11313845), (2225, 9051076), (4450, 4525538), (8900, 2262769)]