31273520

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1753}}^1$

素因数の和:1989

約数の個数: 40

約数和(自身を含む): 73078656

約数和(自身を除く): 41805136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1753, 1784, 2230, 3506, 3568, 4460, 7012, 8765, 8920, 14024, 17530, 17840, 28048, 35060, 70120, 140240, 390919, 781838, 1563676, 1954595, 3127352, 3909190, 6254704, 7818380, 15636760, 31273520]

約数ペア:

[(1, 31273520), (2, 15636760), (4, 7818380), (5, 6254704), (8, 3909190), (10, 3127352), (16, 1954595), (20, 1563676), (40, 781838), (80, 390919), (223, 140240), (446, 70120), (892, 35060), (1115, 28048), (1753, 17840), (1784, 17530), (2230, 14024), (3506, 8920), (3568, 8765), (4460, 7012)]