12900500

素因数分解:

$2^2\times 5^3\times {\mathrm{25801}}^1$

素因数の和:25820

約数の個数: 24

約数和(自身を含む): 28175784

約数和(自身を除く): 15275284

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 25801, 51602, 103204, 129005, 258010, 516020, 645025, 1290050, 2580100, 3225125, 6450250, 12900500]

約数ペア:

[(1, 12900500), (2, 6450250), (4, 3225125), (5, 2580100), (10, 1290050), (20, 645025), (25, 516020), (50, 258010), (100, 129005), (125, 103204), (250, 51602), (500, 25801)]