2762980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 6672960

約数和(自身を除く): 3909980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 661, 836, 1045, 1322, 2090, 2644, 3305, 4180, 6610, 7271, 12559, 13220, 14542, 25118, 29084, 36355, 50236, 62795, 72710, 125590, 138149, 145420, 251180, 276298, 552596, 690745, 1381490, 2762980]

約数ペア:

[(1, 2762980), (2, 1381490), (4, 690745), (5, 552596), (10, 276298), (11, 251180), (19, 145420), (20, 138149), (22, 125590), (38, 72710), (44, 62795), (55, 50236), (76, 36355), (95, 29084), (110, 25118), (190, 14542), (209, 13220), (220, 12559), (380, 7271), (418, 6610), (661, 4180), (836, 3305), (1045, 2644), (1322, 2090)]