65005880

素因数分解:

$2^3\times 5^1\times {\mathrm{1625147}}^1$

素因数の和:1625158

約数の個数: 16

約数和(自身を含む): 146263320

約数和(自身を除く): 81257440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1625147, 3250294, 6500588, 8125735, 13001176, 16251470, 32502940, 65005880]

約数ペア:

[(1, 65005880), (2, 32502940), (4, 16251470), (5, 13001176), (8, 8125735), (10, 6500588), (20, 3250294), (40, 1625147)]