123130720

素因数分解:

$2^5\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1753}}^1$

素因数の和:2207

約数の個数: 48

約数和(自身を含む): 291725280

約数和(自身を除く): 168594560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 439, 878, 1753, 1756, 2195, 3506, 3512, 4390, 7012, 7024, 8765, 8780, 14024, 14048, 17530, 17560, 28048, 35060, 35120, 56096, 70120, 70240, 140240, 280480, 769567, 1539134, 3078268, 3847835, 6156536, 7695670, 12313072, 15391340, 24626144, 30782680, 61565360, 123130720]

約数ペア:

[(1, 123130720), (2, 61565360), (4, 30782680), (5, 24626144), (8, 15391340), (10, 12313072), (16, 7695670), (20, 6156536), (32, 3847835), (40, 3078268), (80, 1539134), (160, 769567), (439, 280480), (878, 140240), (1753, 70240), (1756, 70120), (2195, 56096), (3506, 35120), (3512, 35060), (4390, 28048), (7012, 17560), (7024, 17530), (8765, 14048), (8780, 14024)]