2580100

素因数分解:

$2^2\times 5^2\times {\mathrm{25801}}^1$

素因数の和:25815

約数の個数: 18

約数和(自身を含む): 5599034

約数和(自身を除く): 3018934

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 25801, 51602, 103204, 129005, 258010, 516020, 645025, 1290050, 2580100]

約数ペア:

[(1, 2580100), (2, 1290050), (4, 645025), (5, 516020), (10, 258010), (20, 129005), (25, 103204), (50, 51602), (100, 25801)]