80388560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{143551}}^1$

素因数の和:143571

約数の個数: 40

約数和(自身を含む): 213605376

約数和(自身を除く): 133216816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 143551, 287102, 574204, 717755, 1004857, 1148408, 1435510, 2009714, 2296816, 2871020, 4019428, 5024285, 5742040, 8038856, 10048570, 11484080, 16077712, 20097140, 40194280, 80388560]

約数ペア:

[(1, 80388560), (2, 40194280), (4, 20097140), (5, 16077712), (7, 11484080), (8, 10048570), (10, 8038856), (14, 5742040), (16, 5024285), (20, 4019428), (28, 2871020), (35, 2296816), (40, 2009714), (56, 1435510), (70, 1148408), (80, 1004857), (112, 717755), (140, 574204), (280, 287102), (560, 143551)]