18208625

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:210

約数の個数: 32

約数和(自身を含む): 24281088

約数和(自身を除く): 6072463

約数列:

[1, 5, 25, 31, 37, 125, 127, 155, 185, 635, 775, 925, 1147, 3175, 3875, 3937, 4625, 4699, 5735, 15875, 19685, 23495, 28675, 98425, 117475, 143375, 145669, 492125, 587375, 728345, 3641725, 18208625]

約数ペア:

[(1, 18208625), (5, 3641725), (25, 728345), (31, 587375), (37, 492125), (125, 145669), (127, 143375), (155, 117475), (185, 98425), (635, 28675), (775, 23495), (925, 19685), (1147, 15875), (3175, 5735), (3875, 4699), (3937, 4625)]