90272500

素因数分解:

$2^2\times 5^4\times {\mathrm{36109}}^1$

素因数の和:36133

約数の個数: 30

約数和(自身を含む): 197413370

約数和(自身を除く): 107140870

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 36109, 72218, 144436, 180545, 361090, 722180, 902725, 1805450, 3610900, 4513625, 9027250, 18054500, 22568125, 45136250, 90272500]

約数ペア:

[(1, 90272500), (2, 45136250), (4, 22568125), (5, 18054500), (10, 9027250), (20, 4513625), (25, 3610900), (50, 1805450), (100, 902725), (125, 722180), (250, 361090), (500, 180545), (625, 144436), (1250, 72218), (2500, 36109)]