128540200

素因数分解:

$2^3\times 5^2\times {\mathrm{642701}}^1$

素因数の和:642717

約数の個数: 24

約数和(自身を含む): 298856430

約数和(自身を除く): 170316230

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 642701, 1285402, 2570804, 3213505, 5141608, 6427010, 12854020, 16067525, 25708040, 32135050, 64270100, 128540200]

約数ペア:

[(1, 128540200), (2, 64270100), (4, 32135050), (5, 25708040), (8, 16067525), (10, 12854020), (20, 6427010), (25, 5141608), (40, 3213505), (50, 2570804), (100, 1285402), (200, 642701)]