65894680

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{5297}}^1$

素因数の和:5619

約数の個数: 32

約数和(自身を含む): 148767840

約数和(自身を除く): 82873160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 5297, 6220, 10594, 12440, 21188, 26485, 42376, 52970, 105940, 211880, 1647367, 3294734, 6589468, 8236835, 13178936, 16473670, 32947340, 65894680]

約数ペア:

[(1, 65894680), (2, 32947340), (4, 16473670), (5, 13178936), (8, 8236835), (10, 6589468), (20, 3294734), (40, 1647367), (311, 211880), (622, 105940), (1244, 52970), (1555, 42376), (2488, 26485), (3110, 21188), (5297, 12440), (6220, 10594)]