28245975

素因数分解:

$3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{2749}}^1$

素因数の和:2899

約数の個数: 24

約数和(自身を含む): 47058000

約数和(自身を除く): 18812025

約数列:

[1, 3, 5, 15, 25, 75, 137, 411, 685, 2055, 2749, 3425, 8247, 10275, 13745, 41235, 68725, 206175, 376613, 1129839, 1883065, 5649195, 9415325, 28245975]

約数ペア:

[(1, 28245975), (3, 9415325), (5, 5649195), (15, 1883065), (25, 1129839), (75, 376613), (137, 206175), (411, 68725), (685, 41235), (2055, 13745), (2749, 10275), (3425, 8247)]