28177120

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2887}}^1$

素因数の和:2963

約数の個数: 48

約数和(自身を含む): 67683168

約数和(自身を除く): 39506048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2440, 2887, 4880, 5774, 9760, 11548, 14435, 23096, 28870, 46192, 57740, 92384, 115480, 176107, 230960, 352214, 461920, 704428, 880535, 1408856, 1761070, 2817712, 3522140, 5635424, 7044280, 14088560, 28177120]

約数ペア:

[(1, 28177120), (2, 14088560), (4, 7044280), (5, 5635424), (8, 3522140), (10, 2817712), (16, 1761070), (20, 1408856), (32, 880535), (40, 704428), (61, 461920), (80, 352214), (122, 230960), (160, 176107), (244, 115480), (305, 92384), (488, 57740), (610, 46192), (976, 28870), (1220, 23096), (1952, 14435), (2440, 11548), (2887, 9760), (4880, 5774)]