8397880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2957}}^1$

素因数の和:3039

約数の個数: 32

約数和(自身を含む): 19167840

約数和(自身を除く): 10769960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 2957, 5914, 11828, 14785, 23656, 29570, 59140, 118280, 209947, 419894, 839788, 1049735, 1679576, 2099470, 4198940, 8397880]

約数ペア:

[(1, 8397880), (2, 4198940), (4, 2099470), (5, 1679576), (8, 1049735), (10, 839788), (20, 419894), (40, 209947), (71, 118280), (142, 59140), (284, 29570), (355, 23656), (568, 14785), (710, 11828), (1420, 5914), (2840, 2957)]