1260880

素因数分解:

$2^4\times 5^1\times {\mathrm{15761}}^1$

素因数の和:15774

約数の個数: 20

約数和(自身を含む): 2931732

約数和(自身を除く): 1670852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15761, 31522, 63044, 78805, 126088, 157610, 252176, 315220, 630440, 1260880]

約数ペア:

[(1, 1260880), (2, 630440), (4, 315220), (5, 252176), (8, 157610), (10, 126088), (16, 78805), (20, 63044), (40, 31522), (80, 15761)]