64995880

素因数分解:

$2^3\times 5^1\times {\mathrm{769}}^1\times {\mathrm{2113}}^1$

素因数の和:2893

約数の個数: 32

約数和(自身を含む): 146500200

約数和(自身を除く): 81504320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 769, 1538, 2113, 3076, 3845, 4226, 6152, 7690, 8452, 10565, 15380, 16904, 21130, 30760, 42260, 84520, 1624897, 3249794, 6499588, 8124485, 12999176, 16248970, 32497940, 64995880]

約数ペア:

[(1, 64995880), (2, 32497940), (4, 16248970), (5, 12999176), (8, 8124485), (10, 6499588), (20, 3249794), (40, 1624897), (769, 84520), (1538, 42260), (2113, 30760), (3076, 21130), (3845, 16904), (4226, 15380), (6152, 10565), (7690, 8452)]