17990075

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 23331840

約数和(自身を除く): 5341765

約数列:

[1, 5, 25, 31, 139, 155, 167, 695, 775, 835, 3475, 4175, 4309, 5177, 21545, 23213, 25885, 107725, 116065, 129425, 580325, 719603, 3598015, 17990075]

約数ペア:

[(1, 17990075), (5, 3598015), (25, 719603), (31, 580325), (139, 129425), (155, 116065), (167, 107725), (695, 25885), (775, 23213), (835, 21545), (3475, 5177), (4175, 4309)]