87854780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337903}}^1$

素因数の和:337925

約数の個数: 24

約数和(自身を含む): 198687552

約数和(自身を除く): 110832772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 337903, 675806, 1351612, 1689515, 3379030, 4392739, 6758060, 8785478, 17570956, 21963695, 43927390, 87854780]

約数ペア:

[(1, 87854780), (2, 43927390), (4, 21963695), (5, 17570956), (10, 8785478), (13, 6758060), (20, 4392739), (26, 3379030), (52, 1689515), (65, 1351612), (130, 675806), (260, 337903)]