1997375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{29}}^2$

素因数の和:92

約数の個数: 24

約数和(自身を含む): 2717520

約数和(自身を除く): 720145

約数列:

[1, 5, 19, 25, 29, 95, 125, 145, 475, 551, 725, 841, 2375, 2755, 3625, 4205, 13775, 15979, 21025, 68875, 79895, 105125, 399475, 1997375]

約数ペア:

[(1, 1997375), (5, 399475), (19, 105125), (25, 79895), (29, 68875), (95, 21025), (125, 15979), (145, 13775), (475, 4205), (551, 3625), (725, 2755), (841, 2375)]