25581580

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8147}}^1$

素因数の和:8313

約数の個数: 24

約数和(自身を含む): 54070128

約数和(自身を除く): 28488548

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 8147, 16294, 32588, 40735, 81470, 162940, 1279079, 2558158, 5116316, 6395395, 12790790, 25581580]

約数ペア:

[(1, 25581580), (2, 12790790), (4, 6395395), (5, 5116316), (10, 2558158), (20, 1279079), (157, 162940), (314, 81470), (628, 40735), (785, 32588), (1570, 16294), (3140, 8147)]