80970100

素因数分解:

$2^2\times 5^2\times {\mathrm{809701}}^1$

素因数の和:809715

約数の個数: 18

約数和(自身を含む): 175705334

約数和(自身を除く): 94735234

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 809701, 1619402, 3238804, 4048505, 8097010, 16194020, 20242525, 40485050, 80970100]

約数ペア:

[(1, 80970100), (2, 40485050), (4, 20242525), (5, 16194020), (10, 8097010), (20, 4048505), (25, 3238804), (50, 1619402), (100, 809701)]