81047570

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197677}}^1$

素因数の和:197725

約数の個数: 16

約数和(自身を含む): 149444568

約数和(自身を除く): 68396998

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 197677, 395354, 988385, 1976770, 8104757, 16209514, 40523785, 81047570]

約数ペア:

[(1, 81047570), (2, 40523785), (5, 16209514), (10, 8104757), (41, 1976770), (82, 988385), (205, 395354), (410, 197677)]