131987135

素因数分解:

$5^1\times 7^2\times {\mathrm{538723}}^1$

素因数の和:538742

約数の個数: 12

約数和(自身を含む): 184243608

約数和(自身を除く): 52256473

約数列:

[1, 5, 7, 35, 49, 245, 538723, 2693615, 3771061, 18855305, 26397427, 131987135]

約数ペア:

[(1, 131987135), (5, 26397427), (7, 18855305), (35, 3771061), (49, 2693615), (245, 538723)]