20911250

素因数分解:

$2^1\times 5^4\times {\mathrm{16729}}^1$

素因数の和:16751

約数の個数: 20

約数和(自身を含む): 39198390

約数和(自身を除く): 18287140

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 16729, 33458, 83645, 167290, 418225, 836450, 2091125, 4182250, 10455625, 20911250]

約数ペア:

[(1, 20911250), (2, 10455625), (5, 4182250), (10, 2091125), (25, 836450), (50, 418225), (125, 167290), (250, 83645), (625, 33458), (1250, 16729)]