18155740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1361}}^1$

素因数の和:1422

約数の個数: 48

約数和(自身を含む): 41186880

約数和(自身を除く): 23031140

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 46, 58, 92, 115, 116, 145, 230, 290, 460, 580, 667, 1334, 1361, 2668, 2722, 3335, 5444, 6670, 6805, 13340, 13610, 27220, 31303, 39469, 62606, 78938, 125212, 156515, 157876, 197345, 313030, 394690, 626060, 789380, 907787, 1815574, 3631148, 4538935, 9077870, 18155740]

約数ペア:

[(1, 18155740), (2, 9077870), (4, 4538935), (5, 3631148), (10, 1815574), (20, 907787), (23, 789380), (29, 626060), (46, 394690), (58, 313030), (92, 197345), (115, 157876), (116, 156515), (145, 125212), (230, 78938), (290, 62606), (460, 39469), (580, 31303), (667, 27220), (1334, 13610), (1361, 13340), (2668, 6805), (2722, 6670), (3335, 5444)]