20121216480

素因数分解:

$2^5\times 3^6\times 5^1\times {\mathrm{172507}}^1$

素因数の和:172540

約数の個数: 168

約数和(自身を含む): 71272370232

約数和(自身を除く): 51151153752

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 720, 729, 810, 864, 972, 1080, 1215, 1296, 1440, 1458, 1620, 1944, 2160, 2430, 2592, 2916, 3240, 3645, 3888, 4320, 4860, 5832, 6480, 7290, 7776, 9720, 11664, 12960, 14580, 19440, 23328, 29160, 38880, 58320, 116640, 172507, 345014, 517521, 690028, 862535, 1035042, 1380056, 1552563, 1725070, 2070084, 2587605, 2760112, 3105126, 3450140, 4140168, 4657689, 5175210, 5520224, 6210252, 6900280, 7762815, 8280336, 9315378, 10350420, 12420504, 13800560, 13973067, 15525630, 16560672, 18630756, 20700840, 23288445, 24841008, 27601120, 27946134, 31051260, 37261512, 41401680, 41919201, 46576890, 49682016, 55892268, 62102520, 69865335, 74523024, 82803360, 83838402, 93153780, 111784536, 124205040, 125757603, 139730670, 149046048, 167676804, 186307560, 209596005, 223569072, 248410080, 251515206, 279461340, 335353608, 372615120, 419192010, 447138144, 503030412, 558922680, 628788015, 670707216, 745230240, 838384020, 1006060824, 1117845360, 1257576030, 1341414432, 1676768040, 2012121648, 2235690720, 2515152060, 3353536080, 4024243296, 5030304120, 6707072160, 10060608240, 20121216480]

約数ペア:

[(1, 20121216480), (2, 10060608240), (3, 6707072160), (4, 5030304120), (5, 4024243296), (6, 3353536080), (8, 2515152060), (9, 2235690720), (10, 2012121648), (12, 1676768040), (15, 1341414432), (16, 1257576030), (18, 1117845360), (20, 1006060824), (24, 838384020), (27, 745230240), (30, 670707216), (32, 628788015), (36, 558922680), (40, 503030412), (45, 447138144), (48, 419192010), (54, 372615120), (60, 335353608), (72, 279461340), (80, 251515206), (81, 248410080), (90, 223569072), (96, 209596005), (108, 186307560), (120, 167676804), (135, 149046048), (144, 139730670), (160, 125757603), (162, 124205040), (180, 111784536), (216, 93153780), (240, 83838402), (243, 82803360), (270, 74523024), (288, 69865335), (324, 62102520), (360, 55892268), (405, 49682016), (432, 46576890), (480, 41919201), (486, 41401680), (540, 37261512), (648, 31051260), (720, 27946134), (729, 27601120), (810, 24841008), (864, 23288445), (972, 20700840), (1080, 18630756), (1215, 16560672), (1296, 15525630), (1440, 13973067), (1458, 13800560), (1620, 12420504), (1944, 10350420), (2160, 9315378), (2430, 8280336), (2592, 7762815), (2916, 6900280), (3240, 6210252), (3645, 5520224), (3888, 5175210), (4320, 4657689), (4860, 4140168), (5832, 3450140), (6480, 3105126), (7290, 2760112), (7776, 2587605), (9720, 2070084), (11664, 1725070), (12960, 1552563), (14580, 1380056), (19440, 1035042), (23328, 862535), (29160, 690028), (38880, 517521), (58320, 345014), (116640, 172507)]