331320380

素因数分解:

$2^2\times 5^1\times {\mathrm{16566019}}^1$

素因数の和:16566028

約数の個数: 12

約数和(自身を含む): 695772840

約数和(自身を除く): 364452460

約数列:

[1, 2, 4, 5, 10, 20, 16566019, 33132038, 66264076, 82830095, 165660190, 331320380]

約数ペア:

[(1, 331320380), (2, 165660190), (4, 82830095), (5, 66264076), (10, 33132038), (20, 16566019)]