80798975

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:467

約数の個数: 24

約数和(自身を含む): 102300000

約数和(自身を除く): 21501025

約数列:

[1, 5, 25, 109, 149, 199, 545, 745, 995, 2725, 3725, 4975, 16241, 21691, 29651, 81205, 108455, 148255, 406025, 542275, 741275, 3231959, 16159795, 80798975]

約数ペア:

[(1, 80798975), (5, 16159795), (25, 3231959), (109, 741275), (149, 542275), (199, 406025), (545, 148255), (745, 108455), (995, 81205), (2725, 29651), (3725, 21691), (4975, 16241)]