105680

素因数分解:

$2^4\times 5^1\times {\mathrm{1321}}^1$

素因数の和:1334

約数の個数: 20

約数和(自身を含む): 245892

約数和(自身を除く): 140212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1321, 2642, 5284, 6605, 10568, 13210, 21136, 26420, 52840, 105680]

約数ペア:

[(1, 105680), (2, 52840), (4, 26420), (5, 21136), (8, 13210), (10, 10568), (16, 6605), (20, 5284), (40, 2642), (80, 1321)]