79720100

素因数分解:

$2^2\times 5^2\times {\mathrm{797201}}^1$

素因数の和:797215

約数の個数: 18

約数和(自身を含む): 172992834

約数和(自身を除く): 93272734

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 797201, 1594402, 3188804, 3986005, 7972010, 15944020, 19930025, 39860050, 79720100]

約数ペア:

[(1, 79720100), (2, 39860050), (4, 19930025), (5, 15944020), (10, 7972010), (20, 3986005), (25, 3188804), (50, 1594402), (100, 797201)]