85817440

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2087}}^1$

素因数の和:2359

約数の個数: 48

約数和(自身を含む): 203630112

約数和(自身を除く): 117812672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 1028, 1285, 2056, 2087, 2570, 4112, 4174, 5140, 8224, 8348, 10280, 10435, 16696, 20560, 20870, 33392, 41120, 41740, 66784, 83480, 166960, 333920, 536359, 1072718, 2145436, 2681795, 4290872, 5363590, 8581744, 10727180, 17163488, 21454360, 42908720, 85817440]

約数ペア:

[(1, 85817440), (2, 42908720), (4, 21454360), (5, 17163488), (8, 10727180), (10, 8581744), (16, 5363590), (20, 4290872), (32, 2681795), (40, 2145436), (80, 1072718), (160, 536359), (257, 333920), (514, 166960), (1028, 83480), (1285, 66784), (2056, 41740), (2087, 41120), (2570, 33392), (4112, 20870), (4174, 20560), (5140, 16696), (8224, 10435), (8348, 10280)]