12847705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 17821440

約数和(自身を除く): 4973735

約数列:

[1, 5, 13, 19, 65, 95, 101, 103, 247, 505, 515, 1235, 1313, 1339, 1919, 1957, 6565, 6695, 9595, 9785, 10403, 24947, 25441, 52015, 124735, 127205, 135239, 197657, 676195, 988285, 2569541, 12847705]

約数ペア:

[(1, 12847705), (5, 2569541), (13, 988285), (19, 676195), (65, 197657), (95, 135239), (101, 127205), (103, 124735), (247, 52015), (505, 25441), (515, 24947), (1235, 10403), (1313, 9785), (1339, 9595), (1919, 6695), (1957, 6565)]