1640774880

素因数分解:

$2^5\times 3^9\times 5^1\times {\mathrm{521}}^1$

素因数の和:563

約数の個数: 240

約数和(自身を含む): 5825557584

約数和(自身を除く): 4184782704

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, 521, 540, 648, 720, 729, 810, 864, 972, 1042, 1080, 1215, 1296, 1440, 1458, 1563, 1620, 1944, 2084, 2160, 2187, 2430, 2592, 2605, 2916, 3126, 3240, 3645, 3888, 4168, 4320, 4374, 4689, 4860, 5210, 5832, 6252, 6480, 6561, 7290, 7776, 7815, 8336, 8748, 9378, 9720, 10420, 10935, 11664, 12504, 12960, 13122, 14067, 14580, 15630, 16672, 17496, 18756, 19440, 19683, 20840, 21870, 23328, 23445, 25008, 26244, 28134, 29160, 31260, 32805, 34992, 37512, 38880, 39366, 41680, 42201, 43740, 46890, 50016, 52488, 56268, 58320, 62520, 65610, 69984, 70335, 75024, 78732, 83360, 84402, 87480, 93780, 98415, 104976, 112536, 116640, 125040, 126603, 131220, 140670, 150048, 157464, 168804, 174960, 187560, 196830, 209952, 211005, 225072, 250080, 253206, 262440, 281340, 314928, 337608, 349920, 375120, 379809, 393660, 422010, 450144, 506412, 524880, 562680, 629856, 633015, 675216, 750240, 759618, 787320, 844020, 1012824, 1049760, 1125360, 1139427, 1266030, 1350432, 1519236, 1574640, 1688040, 1899045, 2025648, 2250720, 2278854, 2532060, 3038472, 3149280, 3376080, 3418281, 3798090, 4051296, 4557708, 5064120, 5697135, 6076944, 6752160, 6836562, 7596180, 9115416, 10128240, 10254843, 11394270, 12153888, 13673124, 15192360, 17091405, 18230832, 20256480, 20509686, 22788540, 27346248, 30384720, 34182810, 36461664, 41019372, 45577080, 51274215, 54692496, 60769440, 68365620, 82038744, 91154160, 102548430, 109384992, 136731240, 164077488, 182308320, 205096860, 273462480, 328154976, 410193720, 546924960, 820387440, 1640774880]

約数ペア:

[(1, 1640774880), (2, 820387440), (3, 546924960), (4, 410193720), (5, 328154976), (6, 273462480), (8, 205096860), (9, 182308320), (10, 164077488), (12, 136731240), (15, 109384992), (16, 102548430), (18, 91154160), (20, 82038744), (24, 68365620), (27, 60769440), (30, 54692496), (32, 51274215), (36, 45577080), (40, 41019372), (45, 36461664), (48, 34182810), (54, 30384720), (60, 27346248), (72, 22788540), (80, 20509686), (81, 20256480), (90, 18230832), (96, 17091405), (108, 15192360), (120, 13673124), (135, 12153888), (144, 11394270), (160, 10254843), (162, 10128240), (180, 9115416), (216, 7596180), (240, 6836562), (243, 6752160), (270, 6076944), (288, 5697135), (324, 5064120), (360, 4557708), (405, 4051296), (432, 3798090), (480, 3418281), (486, 3376080), (521, 3149280), (540, 3038472), (648, 2532060), (720, 2278854), (729, 2250720), (810, 2025648), (864, 1899045), (972, 1688040), (1042, 1574640), (1080, 1519236), (1215, 1350432), (1296, 1266030), (1440, 1139427), (1458, 1125360), (1563, 1049760), (1620, 1012824), (1944, 844020), (2084, 787320), (2160, 759618), (2187, 750240), (2430, 675216), (2592, 633015), (2605, 629856), (2916, 562680), (3126, 524880), (3240, 506412), (3645, 450144), (3888, 422010), (4168, 393660), (4320, 379809), (4374, 375120), (4689, 349920), (4860, 337608), (5210, 314928), (5832, 281340), (6252, 262440), (6480, 253206), (6561, 250080), (7290, 225072), (7776, 211005), (7815, 209952), (8336, 196830), (8748, 187560), (9378, 174960), (9720, 168804), (10420, 157464), (10935, 150048), (11664, 140670), (12504, 131220), (12960, 126603), (13122, 125040), (14067, 116640), (14580, 112536), (15630, 104976), (16672, 98415), (17496, 93780), (18756, 87480), (19440, 84402), (19683, 83360), (20840, 78732), (21870, 75024), (23328, 70335), (23445, 69984), (25008, 65610), (26244, 62520), (28134, 58320), (29160, 56268), (31260, 52488), (32805, 50016), (34992, 46890), (37512, 43740), (38880, 42201), (39366, 41680)]