18171049220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1559}}^1\times {\mathrm{13553}}^1$

素因数の和:15164

約数の個数: 48

約数和(自身を含む): 39074555520

約数和(自身を除く): 20903506300

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1559, 3118, 6236, 7795, 13553, 15590, 27106, 31180, 54212, 67037, 67765, 134074, 135530, 268148, 271060, 335185, 582779, 670370, 1165558, 1340740, 2331116, 2913895, 5827790, 11655580, 21129127, 42258254, 84516508, 105645635, 211291270, 422582540, 908552461, 1817104922, 3634209844, 4542762305, 9085524610, 18171049220]

約数ペア:

[(1, 18171049220), (2, 9085524610), (4, 4542762305), (5, 3634209844), (10, 1817104922), (20, 908552461), (43, 422582540), (86, 211291270), (172, 105645635), (215, 84516508), (430, 42258254), (860, 21129127), (1559, 11655580), (3118, 5827790), (6236, 2913895), (7795, 2331116), (13553, 1340740), (15590, 1165558), (27106, 670370), (31180, 582779), (54212, 335185), (67037, 271060), (67765, 268148), (134074, 135530)]