128565440

素因数分解:

$2^6\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1049}}^1$

素因数の和:1449

約数の個数: 56

約数和(自身を含む): 307238400

約数和(自身を除く): 178672960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 383, 766, 1049, 1532, 1915, 2098, 3064, 3830, 4196, 5245, 6128, 7660, 8392, 10490, 12256, 15320, 16784, 20980, 24512, 30640, 33568, 41960, 61280, 67136, 83920, 122560, 167840, 335680, 401767, 803534, 1607068, 2008835, 3214136, 4017670, 6428272, 8035340, 12856544, 16070680, 25713088, 32141360, 64282720, 128565440]

約数ペア:

[(1, 128565440), (2, 64282720), (4, 32141360), (5, 25713088), (8, 16070680), (10, 12856544), (16, 8035340), (20, 6428272), (32, 4017670), (40, 3214136), (64, 2008835), (80, 1607068), (160, 803534), (320, 401767), (383, 335680), (766, 167840), (1049, 122560), (1532, 83920), (1915, 67136), (2098, 61280), (3064, 41960), (3830, 33568), (4196, 30640), (5245, 24512), (6128, 20980), (7660, 16784), (8392, 15320), (10490, 12256)]