28405700

素因数分解:

$2^2\times 5^2\times {\mathrm{284057}}^1$

素因数の和:284071

約数の個数: 18

約数和(自身を含む): 61640586

約数和(自身を除く): 33234886

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 284057, 568114, 1136228, 1420285, 2840570, 5681140, 7101425, 14202850, 28405700]

約数ペア:

[(1, 28405700), (2, 14202850), (4, 7101425), (5, 5681140), (10, 2840570), (20, 1420285), (25, 1136228), (50, 568114), (100, 284057)]