20215600

素因数分解:

$2^4\times 5^2\times {\mathrm{50539}}^1$

素因数の和:50557

約数の個数: 30

約数和(自身を含む): 48568940

約数和(自身を除く): 28353340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50539, 101078, 202156, 252695, 404312, 505390, 808624, 1010780, 1263475, 2021560, 2526950, 4043120, 5053900, 10107800, 20215600]

約数ペア:

[(1, 20215600), (2, 10107800), (4, 5053900), (5, 4043120), (8, 2526950), (10, 2021560), (16, 1263475), (20, 1010780), (25, 808624), (40, 505390), (50, 404312), (80, 252695), (100, 202156), (200, 101078), (400, 50539)]