80725240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{65101}}^1$

素因数の和:65143

約数の個数: 32

約数和(自身を含む): 187493760

約数和(自身を除く): 106768520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 65101, 130202, 260404, 325505, 520808, 651010, 1302020, 2018131, 2604040, 4036262, 8072524, 10090655, 16145048, 20181310, 40362620, 80725240]

約数ペア:

[(1, 80725240), (2, 40362620), (4, 20181310), (5, 16145048), (8, 10090655), (10, 8072524), (20, 4036262), (31, 2604040), (40, 2018131), (62, 1302020), (124, 651010), (155, 520808), (248, 325505), (310, 260404), (620, 130202), (1240, 65101)]