21768120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:290

約数の個数: 192

約数和(自身を含む): 80870400

約数和(自身を除く): 59102280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 23, 24, 30, 33, 36, 40, 44, 45, 46, 55, 60, 66, 69, 72, 88, 90, 92, 99, 110, 115, 120, 132, 138, 165, 180, 184, 198, 207, 220, 230, 239, 253, 264, 276, 330, 345, 360, 396, 414, 440, 460, 478, 495, 506, 552, 660, 690, 717, 759, 792, 828, 920, 956, 990, 1012, 1035, 1195, 1265, 1320, 1380, 1434, 1518, 1656, 1912, 1980, 2024, 2070, 2151, 2277, 2390, 2530, 2629, 2760, 2868, 3036, 3585, 3795, 3960, 4140, 4302, 4554, 4780, 5060, 5258, 5497, 5736, 6072, 7170, 7590, 7887, 8280, 8604, 9108, 9560, 10120, 10516, 10755, 10994, 11385, 13145, 14340, 15180, 15774, 16491, 17208, 18216, 21032, 21510, 21988, 22770, 23661, 26290, 27485, 28680, 30360, 31548, 32982, 39435, 43020, 43976, 45540, 47322, 49473, 52580, 54970, 60467, 63096, 65964, 78870, 82455, 86040, 91080, 94644, 98946, 105160, 109940, 118305, 120934, 131928, 157740, 164910, 181401, 189288, 197892, 219880, 236610, 241868, 247365, 302335, 315480, 329820, 362802, 395784, 473220, 483736, 494730, 544203, 604670, 659640, 725604, 907005, 946440, 989460, 1088406, 1209340, 1451208, 1814010, 1978920, 2176812, 2418680, 2721015, 3628020, 4353624, 5442030, 7256040, 10884060, 21768120]

約数ペア:

[(1, 21768120), (2, 10884060), (3, 7256040), (4, 5442030), (5, 4353624), (6, 3628020), (8, 2721015), (9, 2418680), (10, 2176812), (11, 1978920), (12, 1814010), (15, 1451208), (18, 1209340), (20, 1088406), (22, 989460), (23, 946440), (24, 907005), (30, 725604), (33, 659640), (36, 604670), (40, 544203), (44, 494730), (45, 483736), (46, 473220), (55, 395784), (60, 362802), (66, 329820), (69, 315480), (72, 302335), (88, 247365), (90, 241868), (92, 236610), (99, 219880), (110, 197892), (115, 189288), (120, 181401), (132, 164910), (138, 157740), (165, 131928), (180, 120934), (184, 118305), (198, 109940), (207, 105160), (220, 98946), (230, 94644), (239, 91080), (253, 86040), (264, 82455), (276, 78870), (330, 65964), (345, 63096), (360, 60467), (396, 54970), (414, 52580), (440, 49473), (460, 47322), (478, 45540), (495, 43976), (506, 43020), (552, 39435), (660, 32982), (690, 31548), (717, 30360), (759, 28680), (792, 27485), (828, 26290), (920, 23661), (956, 22770), (990, 21988), (1012, 21510), (1035, 21032), (1195, 18216), (1265, 17208), (1320, 16491), (1380, 15774), (1434, 15180), (1518, 14340), (1656, 13145), (1912, 11385), (1980, 10994), (2024, 10755), (2070, 10516), (2151, 10120), (2277, 9560), (2390, 9108), (2530, 8604), (2629, 8280), (2760, 7887), (2868, 7590), (3036, 7170), (3585, 6072), (3795, 5736), (3960, 5497), (4140, 5258), (4302, 5060), (4554, 4780)]