129717580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{1609}}^1$

素因数の和:1786

約数の個数: 48

約数和(自身を含む): 284004000

約数和(自身を除く): 154286420

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 139, 145, 278, 290, 556, 580, 695, 1390, 1609, 2780, 3218, 4031, 6436, 8045, 8062, 16090, 16124, 20155, 32180, 40310, 46661, 80620, 93322, 186644, 223651, 233305, 447302, 466610, 894604, 933220, 1118255, 2236510, 4473020, 6485879, 12971758, 25943516, 32429395, 64858790, 129717580]

約数ペア:

[(1, 129717580), (2, 64858790), (4, 32429395), (5, 25943516), (10, 12971758), (20, 6485879), (29, 4473020), (58, 2236510), (116, 1118255), (139, 933220), (145, 894604), (278, 466610), (290, 447302), (556, 233305), (580, 223651), (695, 186644), (1390, 93322), (1609, 80620), (2780, 46661), (3218, 40310), (4031, 32180), (6436, 20155), (8045, 16124), (8062, 16090)]