137990260

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{71129}}^1$

素因数の和:71235

約数の個数: 24

約数和(自身を含む): 292771080

約数和(自身を除く): 154780820

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 71129, 142258, 284516, 355645, 711290, 1422580, 6899513, 13799026, 27598052, 34497565, 68995130, 137990260]

約数ペア:

[(1, 137990260), (2, 68995130), (4, 34497565), (5, 27598052), (10, 13799026), (20, 6899513), (97, 1422580), (194, 711290), (388, 355645), (485, 284516), (970, 142258), (1940, 71129)]