209287020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{81119}}^1$

素因数の和:81174

約数の個数: 48

約数和(自身を含む): 599639040

約数和(自身を除く): 390352020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 81119, 162238, 243357, 324476, 405595, 486714, 811190, 973428, 1216785, 1622380, 2433570, 3488117, 4867140, 6976234, 10464351, 13952468, 17440585, 20928702, 34881170, 41857404, 52321755, 69762340, 104643510, 209287020]

約数ペア:

[(1, 209287020), (2, 104643510), (3, 69762340), (4, 52321755), (5, 41857404), (6, 34881170), (10, 20928702), (12, 17440585), (15, 13952468), (20, 10464351), (30, 6976234), (43, 4867140), (60, 3488117), (86, 2433570), (129, 1622380), (172, 1216785), (215, 973428), (258, 811190), (430, 486714), (516, 405595), (645, 324476), (860, 243357), (1290, 162238), (2580, 81119)]