20440820

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5351}}^1$

素因数の和:5551

約数の個数: 24

約数和(自身を含む): 43158528

約数和(自身を除く): 22717708

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 5351, 10702, 21404, 26755, 53510, 107020, 1022041, 2044082, 4088164, 5110205, 10220410, 20440820]

約数ペア:

[(1, 20440820), (2, 10220410), (4, 5110205), (5, 4088164), (10, 2044082), (20, 1022041), (191, 107020), (382, 53510), (764, 26755), (955, 21404), (1910, 10702), (3820, 5351)]