20309140

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1877}}^1$

素因数の和:2427

約数の個数: 24

約数和(自身を含む): 42750792

約数和(自身を除く): 22441652

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 1877, 2164, 2705, 3754, 5410, 7508, 9385, 10820, 18770, 37540, 1015457, 2030914, 4061828, 5077285, 10154570, 20309140]

約数ペア:

[(1, 20309140), (2, 10154570), (4, 5077285), (5, 4061828), (10, 2030914), (20, 1015457), (541, 37540), (1082, 18770), (1877, 10820), (2164, 9385), (2705, 7508), (3754, 5410)]