20988650

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{18251}}^1$

素因数の和:18286

約数の個数: 24

約数和(自身を含む): 40738464

約数和(自身を除く): 19749814

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 575, 1150, 18251, 36502, 91255, 182510, 419773, 456275, 839546, 912550, 2098865, 4197730, 10494325, 20988650]

約数ペア:

[(1, 20988650), (2, 10494325), (5, 4197730), (10, 2098865), (23, 912550), (25, 839546), (46, 456275), (50, 419773), (115, 182510), (230, 91255), (575, 36502), (1150, 18251)]