1921225

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:145

約数の個数: 24

約数和(自身を含む): 2563328

約数和(自身を除く): 642103

約数列:

[1, 5, 25, 31, 37, 67, 155, 185, 335, 775, 925, 1147, 1675, 2077, 2479, 5735, 10385, 12395, 28675, 51925, 61975, 76849, 384245, 1921225]

約数ペア:

[(1, 1921225), (5, 384245), (25, 76849), (31, 61975), (37, 51925), (67, 28675), (155, 12395), (185, 10385), (335, 5735), (775, 2479), (925, 2077), (1147, 1675)]