131393255

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31547}}^1$

素因数の和:31583

約数の個数: 24

約数和(自身を含む): 194209488

約数和(自身を除く): 62816233

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 31547, 157735, 220829, 536299, 1104145, 1545803, 2681495, 3754093, 7729015, 18770465, 26278651, 131393255]

約数ペア:

[(1, 131393255), (5, 26278651), (7, 18770465), (17, 7729015), (35, 3754093), (49, 2681495), (85, 1545803), (119, 1104145), (245, 536299), (595, 220829), (833, 157735), (4165, 31547)]