209250380

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{156157}}^1$

素因数の和:156233

約数の個数: 24

約数和(自身を含む): 445987248

約数和(自身を除く): 236736868

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 156157, 312314, 624628, 780785, 1561570, 3123140, 10462519, 20925038, 41850076, 52312595, 104625190, 209250380]

約数ペア:

[(1, 209250380), (2, 104625190), (4, 52312595), (5, 41850076), (10, 20925038), (20, 10462519), (67, 3123140), (134, 1561570), (268, 780785), (335, 624628), (670, 312314), (1340, 156157)]