7864480

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:246

約数の個数: 96

約数和(自身を含む): 21168000

約数和(自身を除く): 13303520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 160, 190, 199, 208, 247, 260, 304, 380, 398, 416, 494, 520, 608, 760, 796, 988, 995, 1040, 1235, 1520, 1592, 1976, 1990, 2080, 2470, 2587, 3040, 3184, 3781, 3952, 3980, 4940, 5174, 6368, 7562, 7904, 7960, 9880, 10348, 12935, 15124, 15920, 18905, 19760, 20696, 25870, 30248, 31840, 37810, 39520, 41392, 49153, 51740, 60496, 75620, 82784, 98306, 103480, 120992, 151240, 196612, 206960, 245765, 302480, 393224, 413920, 491530, 604960, 786448, 983060, 1572896, 1966120, 3932240, 7864480]

約数ペア:

[(1, 7864480), (2, 3932240), (4, 1966120), (5, 1572896), (8, 983060), (10, 786448), (13, 604960), (16, 491530), (19, 413920), (20, 393224), (26, 302480), (32, 245765), (38, 206960), (40, 196612), (52, 151240), (65, 120992), (76, 103480), (80, 98306), (95, 82784), (104, 75620), (130, 60496), (152, 51740), (160, 49153), (190, 41392), (199, 39520), (208, 37810), (247, 31840), (260, 30248), (304, 25870), (380, 20696), (398, 19760), (416, 18905), (494, 15920), (520, 15124), (608, 12935), (760, 10348), (796, 9880), (988, 7960), (995, 7904), (1040, 7562), (1235, 6368), (1520, 5174), (1592, 4940), (1976, 3980), (1990, 3952), (2080, 3781), (2470, 3184), (2587, 3040)]