20165708600

素因数分解:

$2^3\times 5^2\times {\mathrm{349}}^1\times {\mathrm{288907}}^1$

素因数の和:289272

約数の個数: 48

約数和(自身を含む): 47019777000

約数和(自身を除く): 26854068400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 349, 698, 1396, 1745, 2792, 3490, 6980, 8725, 13960, 17450, 34900, 69800, 288907, 577814, 1155628, 1444535, 2311256, 2889070, 5778140, 7222675, 11556280, 14445350, 28890700, 57781400, 100828543, 201657086, 403314172, 504142715, 806628344, 1008285430, 2016570860, 2520713575, 4033141720, 5041427150, 10082854300, 20165708600]

約数ペア:

[(1, 20165708600), (2, 10082854300), (4, 5041427150), (5, 4033141720), (8, 2520713575), (10, 2016570860), (20, 1008285430), (25, 806628344), (40, 504142715), (50, 403314172), (100, 201657086), (200, 100828543), (349, 57781400), (698, 28890700), (1396, 14445350), (1745, 11556280), (2792, 7222675), (3490, 5778140), (6980, 2889070), (8725, 2311256), (13960, 1444535), (17450, 1155628), (34900, 577814), (69800, 288907)]