20816450

素因数分解:

$2^1\times 5^2\times {\mathrm{263}}^1\times {\mathrm{1583}}^1$

素因数の和:1858

約数の個数: 24

約数和(自身を含む): 38890368

約数和(自身を除く): 18073918

約数列:

[1, 2, 5, 10, 25, 50, 263, 526, 1315, 1583, 2630, 3166, 6575, 7915, 13150, 15830, 39575, 79150, 416329, 832658, 2081645, 4163290, 10408225, 20816450]

約数ペア:

[(1, 20816450), (2, 10408225), (5, 4163290), (10, 2081645), (25, 832658), (50, 416329), (263, 79150), (526, 39575), (1315, 15830), (1583, 13150), (2630, 7915), (3166, 6575)]