172210745

素因数分解:

$5^1\times 7^2\times {\mathrm{571}}^1\times {\mathrm{1231}}^1$

素因数の和:1821

約数の個数: 24

約数和(自身を含む): 241008768

約数和(自身を除く): 68798023

約数列:

[1, 5, 7, 35, 49, 245, 571, 1231, 2855, 3997, 6155, 8617, 19985, 27979, 43085, 60319, 139895, 301595, 702901, 3514505, 4920307, 24601535, 34442149, 172210745]

約数ペア:

[(1, 172210745), (5, 34442149), (7, 24601535), (35, 4920307), (49, 3514505), (245, 702901), (571, 301595), (1231, 139895), (2855, 60319), (3997, 43085), (6155, 27979), (8617, 19985)]