18726895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 25920000

約数和(自身を除く): 7193105

約数列:

[1, 5, 11, 29, 55, 59, 145, 199, 295, 319, 649, 995, 1595, 1711, 2189, 3245, 5771, 8555, 10945, 11741, 18821, 28855, 58705, 63481, 94105, 129151, 317405, 340489, 645755, 1702445, 3745379, 18726895]

約数ペア:

[(1, 18726895), (5, 3745379), (11, 1702445), (29, 645755), (55, 340489), (59, 317405), (145, 129151), (199, 94105), (295, 63481), (319, 58705), (649, 28855), (995, 18821), (1595, 11741), (1711, 10945), (2189, 8555), (3245, 5771)]