2157500

素因数分解:

$2^2\times 5^4\times {\mathrm{863}}^1$

素因数の和:887

約数の個数: 30

約数和(自身を含む): 4723488

約数和(自身を除く): 2565988

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 863, 1250, 1726, 2500, 3452, 4315, 8630, 17260, 21575, 43150, 86300, 107875, 215750, 431500, 539375, 1078750, 2157500]

約数ペア:

[(1, 2157500), (2, 1078750), (4, 539375), (5, 431500), (10, 215750), (20, 107875), (25, 86300), (50, 43150), (100, 21575), (125, 17260), (250, 8630), (500, 4315), (625, 3452), (863, 2500), (1250, 1726)]