8113880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2857}}^1$

素因数の和:2939

約数の個数: 32

約数和(自身を含む): 18519840

約数和(自身を除く): 10405960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 2857, 5714, 11428, 14285, 22856, 28570, 57140, 114280, 202847, 405694, 811388, 1014235, 1622776, 2028470, 4056940, 8113880]

約数ペア:

[(1, 8113880), (2, 4056940), (4, 2028470), (5, 1622776), (8, 1014235), (10, 811388), (20, 405694), (40, 202847), (71, 114280), (142, 57140), (284, 28570), (355, 22856), (568, 14285), (710, 11428), (1420, 5714), (2840, 2857)]