80828080

素因数分解:

$2^4\times 5^1\times {\mathrm{367}}^1\times {\mathrm{2753}}^1$

素因数の和:3133

約数の個数: 40

約数和(自身を含む): 188505792

約数和(自身を除く): 107677712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 367, 734, 1468, 1835, 2753, 2936, 3670, 5506, 5872, 7340, 11012, 13765, 14680, 22024, 27530, 29360, 44048, 55060, 110120, 220240, 1010351, 2020702, 4041404, 5051755, 8082808, 10103510, 16165616, 20207020, 40414040, 80828080]

約数ペア:

[(1, 80828080), (2, 40414040), (4, 20207020), (5, 16165616), (8, 10103510), (10, 8082808), (16, 5051755), (20, 4041404), (40, 2020702), (80, 1010351), (367, 220240), (734, 110120), (1468, 55060), (1835, 44048), (2753, 29360), (2936, 27530), (3670, 22024), (5506, 14680), (5872, 13765), (7340, 11012)]