328720895

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1\times {\mathrm{2543}}^1$

素因数の和:2902

約数の個数: 16

約数和(自身を含む): 400038912

約数和(自身を除く): 71318017

約数列:

[1, 5, 103, 251, 515, 1255, 2543, 12715, 25853, 129265, 261929, 638293, 1309645, 3191465, 65744179, 328720895]

約数ペア:

[(1, 328720895), (5, 65744179), (103, 3191465), (251, 1309645), (515, 638293), (1255, 261929), (2543, 129265), (12715, 25853)]