321838720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{199}}^1$

素因数の和:263

約数の個数: 192

約数和(自身を含む): 932688000

約数和(自身を除く): 610849280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 190, 199, 224, 266, 280, 304, 320, 361, 380, 398, 448, 532, 560, 608, 640, 665, 722, 760, 796, 896, 995, 1064, 1120, 1216, 1330, 1393, 1444, 1520, 1592, 1805, 1990, 2128, 2240, 2432, 2527, 2660, 2786, 2888, 3040, 3184, 3610, 3781, 3980, 4256, 4480, 5054, 5320, 5572, 5776, 6080, 6368, 6965, 7220, 7562, 7960, 8512, 10108, 10640, 11144, 11552, 12160, 12635, 12736, 13930, 14440, 15124, 15920, 17024, 18905, 20216, 21280, 22288, 23104, 25270, 25472, 26467, 27860, 28880, 30248, 31840, 37810, 40432, 42560, 44576, 46208, 50540, 52934, 55720, 57760, 60496, 63680, 71839, 75620, 80864, 85120, 89152, 101080, 105868, 111440, 115520, 120992, 127360, 132335, 143678, 151240, 161728, 178304, 202160, 211736, 222880, 231040, 241984, 264670, 287356, 302480, 323456, 359195, 404320, 423472, 445760, 483968, 502873, 529340, 574712, 604960, 718390, 808640, 846944, 891520, 1005746, 1058680, 1149424, 1209920, 1436780, 1617280, 1693888, 2011492, 2117360, 2298848, 2419840, 2514365, 2873560, 3387776, 4022984, 4234720, 4597696, 5028730, 5747120, 8045968, 8469440, 9195392, 10057460, 11494240, 16091936, 16938880, 20114920, 22988480, 32183872, 40229840, 45976960, 64367744, 80459680, 160919360, 321838720]

約数ペア:

[(1, 321838720), (2, 160919360), (4, 80459680), (5, 64367744), (7, 45976960), (8, 40229840), (10, 32183872), (14, 22988480), (16, 20114920), (19, 16938880), (20, 16091936), (28, 11494240), (32, 10057460), (35, 9195392), (38, 8469440), (40, 8045968), (56, 5747120), (64, 5028730), (70, 4597696), (76, 4234720), (80, 4022984), (95, 3387776), (112, 2873560), (128, 2514365), (133, 2419840), (140, 2298848), (152, 2117360), (160, 2011492), (190, 1693888), (199, 1617280), (224, 1436780), (266, 1209920), (280, 1149424), (304, 1058680), (320, 1005746), (361, 891520), (380, 846944), (398, 808640), (448, 718390), (532, 604960), (560, 574712), (608, 529340), (640, 502873), (665, 483968), (722, 445760), (760, 423472), (796, 404320), (896, 359195), (995, 323456), (1064, 302480), (1120, 287356), (1216, 264670), (1330, 241984), (1393, 231040), (1444, 222880), (1520, 211736), (1592, 202160), (1805, 178304), (1990, 161728), (2128, 151240), (2240, 143678), (2432, 132335), (2527, 127360), (2660, 120992), (2786, 115520), (2888, 111440), (3040, 105868), (3184, 101080), (3610, 89152), (3781, 85120), (3980, 80864), (4256, 75620), (4480, 71839), (5054, 63680), (5320, 60496), (5572, 57760), (5776, 55720), (6080, 52934), (6368, 50540), (6965, 46208), (7220, 44576), (7562, 42560), (7960, 40432), (8512, 37810), (10108, 31840), (10640, 30248), (11144, 28880), (11552, 27860), (12160, 26467), (12635, 25472), (12736, 25270), (13930, 23104), (14440, 22288), (15124, 21280), (15920, 20216), (17024, 18905)]