20922500

素因数分解:

$2^2\times 5^4\times {\mathrm{8369}}^1$

素因数の和:8393

約数の個数: 30

約数和(自身を含む): 45758790

約数和(自身を除く): 24836290

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 8369, 16738, 33476, 41845, 83690, 167380, 209225, 418450, 836900, 1046125, 2092250, 4184500, 5230625, 10461250, 20922500]

約数ペア:

[(1, 20922500), (2, 10461250), (4, 5230625), (5, 4184500), (10, 2092250), (20, 1046125), (25, 836900), (50, 418450), (100, 209225), (125, 167380), (250, 83690), (500, 41845), (625, 33476), (1250, 16738), (2500, 8369)]