78406720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 224

約数和(自身を含む): 237012480

約数和(自身を除く): 158605760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 29, 32, 34, 35, 40, 56, 58, 64, 68, 70, 71, 80, 85, 112, 116, 119, 136, 140, 142, 145, 160, 170, 203, 224, 232, 238, 272, 280, 284, 290, 320, 340, 355, 406, 448, 464, 476, 493, 497, 544, 560, 568, 580, 595, 680, 710, 812, 928, 952, 986, 994, 1015, 1088, 1120, 1136, 1160, 1190, 1207, 1360, 1420, 1624, 1856, 1904, 1972, 1988, 2030, 2059, 2240, 2272, 2320, 2380, 2414, 2465, 2485, 2720, 2840, 3248, 3451, 3808, 3944, 3976, 4060, 4118, 4544, 4640, 4760, 4828, 4930, 4970, 5440, 5680, 6035, 6496, 6902, 7616, 7888, 7952, 8120, 8236, 8449, 9280, 9520, 9656, 9860, 9940, 10295, 11360, 12070, 12992, 13804, 14413, 15776, 15904, 16240, 16472, 16898, 17255, 19040, 19312, 19720, 19880, 20590, 22720, 24140, 27608, 28826, 31552, 31808, 32480, 32944, 33796, 34510, 35003, 38080, 38624, 39440, 39760, 41180, 42245, 48280, 55216, 57652, 64960, 65888, 67592, 69020, 70006, 72065, 77248, 78880, 79520, 82360, 84490, 96560, 110432, 115304, 131776, 135184, 138040, 140012, 144130, 157760, 159040, 164720, 168980, 175015, 193120, 220864, 230608, 245021, 270368, 276080, 280024, 288260, 329440, 337960, 350030, 386240, 461216, 490042, 540736, 552160, 560048, 576520, 658880, 675920, 700060, 922432, 980084, 1104320, 1120096, 1153040, 1225105, 1351840, 1400120, 1960168, 2240192, 2306080, 2450210, 2703680, 2800240, 3920336, 4612160, 4900420, 5600480, 7840672, 9800840, 11200960, 15681344, 19601680, 39203360, 78406720]

約数ペア:

[(1, 78406720), (2, 39203360), (4, 19601680), (5, 15681344), (7, 11200960), (8, 9800840), (10, 7840672), (14, 5600480), (16, 4900420), (17, 4612160), (20, 3920336), (28, 2800240), (29, 2703680), (32, 2450210), (34, 2306080), (35, 2240192), (40, 1960168), (56, 1400120), (58, 1351840), (64, 1225105), (68, 1153040), (70, 1120096), (71, 1104320), (80, 980084), (85, 922432), (112, 700060), (116, 675920), (119, 658880), (136, 576520), (140, 560048), (142, 552160), (145, 540736), (160, 490042), (170, 461216), (203, 386240), (224, 350030), (232, 337960), (238, 329440), (272, 288260), (280, 280024), (284, 276080), (290, 270368), (320, 245021), (340, 230608), (355, 220864), (406, 193120), (448, 175015), (464, 168980), (476, 164720), (493, 159040), (497, 157760), (544, 144130), (560, 140012), (568, 138040), (580, 135184), (595, 131776), (680, 115304), (710, 110432), (812, 96560), (928, 84490), (952, 82360), (986, 79520), (994, 78880), (1015, 77248), (1088, 72065), (1120, 70006), (1136, 69020), (1160, 67592), (1190, 65888), (1207, 64960), (1360, 57652), (1420, 55216), (1624, 48280), (1856, 42245), (1904, 41180), (1972, 39760), (1988, 39440), (2030, 38624), (2059, 38080), (2240, 35003), (2272, 34510), (2320, 33796), (2380, 32944), (2414, 32480), (2465, 31808), (2485, 31552), (2720, 28826), (2840, 27608), (3248, 24140), (3451, 22720), (3808, 20590), (3944, 19880), (3976, 19720), (4060, 19312), (4118, 19040), (4544, 17255), (4640, 16898), (4760, 16472), (4828, 16240), (4930, 15904), (4970, 15776), (5440, 14413), (5680, 13804), (6035, 12992), (6496, 12070), (6902, 11360), (7616, 10295), (7888, 9940), (7952, 9860), (8120, 9656), (8236, 9520), (8449, 9280)]