71990240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:257

約数の個数: 192

約数和(自身を含む): 217728000

約数和(自身を除く): 145737760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 19, 20, 28, 32, 34, 35, 38, 40, 56, 68, 70, 76, 80, 85, 95, 112, 119, 133, 136, 140, 152, 160, 170, 190, 199, 224, 238, 266, 272, 280, 304, 323, 340, 380, 398, 476, 532, 544, 560, 595, 608, 646, 665, 680, 760, 796, 952, 995, 1064, 1120, 1190, 1292, 1330, 1360, 1393, 1520, 1592, 1615, 1904, 1990, 2128, 2261, 2380, 2584, 2660, 2720, 2786, 3040, 3184, 3230, 3383, 3781, 3808, 3980, 4256, 4522, 4760, 5168, 5320, 5572, 6368, 6460, 6766, 6965, 7562, 7960, 9044, 9520, 10336, 10640, 11144, 11305, 12920, 13532, 13930, 15124, 15920, 16915, 18088, 18905, 19040, 21280, 22288, 22610, 23681, 25840, 26467, 27064, 27860, 30248, 31840, 33830, 36176, 37810, 44576, 45220, 47362, 51680, 52934, 54128, 55720, 60496, 64277, 67660, 72352, 75620, 90440, 94724, 105868, 108256, 111440, 118405, 120992, 128554, 132335, 135320, 151240, 180880, 189448, 211736, 222880, 236810, 257108, 264670, 270640, 302480, 321385, 361760, 378896, 423472, 449939, 473620, 514216, 529340, 541280, 604960, 642770, 757792, 846944, 899878, 947240, 1028432, 1058680, 1285540, 1799756, 1894480, 2056864, 2117360, 2249695, 2571080, 3599512, 3788960, 4234720, 4499390, 5142160, 7199024, 8998780, 10284320, 14398048, 17997560, 35995120, 71990240]

約数ペア:

[(1, 71990240), (2, 35995120), (4, 17997560), (5, 14398048), (7, 10284320), (8, 8998780), (10, 7199024), (14, 5142160), (16, 4499390), (17, 4234720), (19, 3788960), (20, 3599512), (28, 2571080), (32, 2249695), (34, 2117360), (35, 2056864), (38, 1894480), (40, 1799756), (56, 1285540), (68, 1058680), (70, 1028432), (76, 947240), (80, 899878), (85, 846944), (95, 757792), (112, 642770), (119, 604960), (133, 541280), (136, 529340), (140, 514216), (152, 473620), (160, 449939), (170, 423472), (190, 378896), (199, 361760), (224, 321385), (238, 302480), (266, 270640), (272, 264670), (280, 257108), (304, 236810), (323, 222880), (340, 211736), (380, 189448), (398, 180880), (476, 151240), (532, 135320), (544, 132335), (560, 128554), (595, 120992), (608, 118405), (646, 111440), (665, 108256), (680, 105868), (760, 94724), (796, 90440), (952, 75620), (995, 72352), (1064, 67660), (1120, 64277), (1190, 60496), (1292, 55720), (1330, 54128), (1360, 52934), (1393, 51680), (1520, 47362), (1592, 45220), (1615, 44576), (1904, 37810), (1990, 36176), (2128, 33830), (2261, 31840), (2380, 30248), (2584, 27860), (2660, 27064), (2720, 26467), (2786, 25840), (3040, 23681), (3184, 22610), (3230, 22288), (3383, 21280), (3781, 19040), (3808, 18905), (3980, 18088), (4256, 16915), (4522, 15920), (4760, 15124), (5168, 13930), (5320, 13532), (5572, 12920), (6368, 11305), (6460, 11144), (6766, 10640), (6965, 10336), (7562, 9520), (7960, 9044)]