78821375

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{20341}}^1$

素因数の和:20387

約数の個数: 16

約数和(自身を含む): 101547264

約数和(自身を除く): 22725889

約数列:

[1, 5, 25, 31, 125, 155, 775, 3875, 20341, 101705, 508525, 630571, 2542625, 3152855, 15764275, 78821375]

約数ペア:

[(1, 78821375), (5, 15764275), (25, 3152855), (31, 2542625), (125, 630571), (155, 508525), (775, 101705), (3875, 20341)]