20902450

素因数分解:

$2^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{3907}}^1$

素因数の和:4026

約数の個数: 24

約数和(自身を含む): 39251952

約数和(自身を除く): 18349502

約数列:

[1, 2, 5, 10, 25, 50, 107, 214, 535, 1070, 2675, 3907, 5350, 7814, 19535, 39070, 97675, 195350, 418049, 836098, 2090245, 4180490, 10451225, 20902450]

約数ペア:

[(1, 20902450), (2, 10451225), (5, 4180490), (10, 2090245), (25, 836098), (50, 418049), (107, 195350), (214, 97675), (535, 39070), (1070, 19535), (2675, 7814), (3907, 5350)]