2012399440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{6653}}^1$

素因数の和:6884

約数の個数: 80

約数和(自身を含む): 4950576000

約数和(自身を除く): 2938176560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 199, 304, 380, 398, 760, 796, 995, 1520, 1592, 1990, 3184, 3781, 3980, 6653, 7562, 7960, 13306, 15124, 15920, 18905, 26612, 30248, 33265, 37810, 53224, 60496, 66530, 75620, 106448, 126407, 133060, 151240, 252814, 266120, 302480, 505628, 532240, 632035, 1011256, 1264070, 1323947, 2022512, 2528140, 2647894, 5056280, 5295788, 6619735, 10112560, 10591576, 13239470, 21183152, 25154993, 26478940, 50309986, 52957880, 100619972, 105915760, 125774965, 201239944, 251549930, 402479888, 503099860, 1006199720, 2012399440]

約数ペア:

[(1, 2012399440), (2, 1006199720), (4, 503099860), (5, 402479888), (8, 251549930), (10, 201239944), (16, 125774965), (19, 105915760), (20, 100619972), (38, 52957880), (40, 50309986), (76, 26478940), (80, 25154993), (95, 21183152), (152, 13239470), (190, 10591576), (199, 10112560), (304, 6619735), (380, 5295788), (398, 5056280), (760, 2647894), (796, 2528140), (995, 2022512), (1520, 1323947), (1592, 1264070), (1990, 1011256), (3184, 632035), (3781, 532240), (3980, 505628), (6653, 302480), (7562, 266120), (7960, 252814), (13306, 151240), (15124, 133060), (15920, 126407), (18905, 106448), (26612, 75620), (30248, 66530), (33265, 60496), (37810, 53224)]