20873110

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{617}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 40046400

約数和(自身を除く): 19173290

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 199, 398, 617, 995, 1234, 1990, 3085, 3383, 6170, 6766, 10489, 16915, 20978, 33830, 52445, 104890, 122783, 245566, 613915, 1227830, 2087311, 4174622, 10436555, 20873110]

約数ペア:

[(1, 20873110), (2, 10436555), (5, 4174622), (10, 2087311), (17, 1227830), (34, 613915), (85, 245566), (170, 122783), (199, 104890), (398, 52445), (617, 33830), (995, 20978), (1234, 16915), (1990, 10489), (3085, 6766), (3383, 6170)]