81531360

素因数分解:

$2^5\times 3^7\times 5^1\times {\mathrm{233}}^1$

素因数の和:269

約数の個数: 192

約数和(自身を含む): 290122560

約数和(自身を除く): 208591200

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, 233, 240, 243, 270, 288, 324, 360, 405, 432, 466, 480, 486, 540, 648, 699, 720, 729, 810, 864, 932, 972, 1080, 1165, 1215, 1296, 1398, 1440, 1458, 1620, 1864, 1944, 2097, 2160, 2187, 2330, 2430, 2592, 2796, 2916, 3240, 3495, 3645, 3728, 3888, 4194, 4320, 4374, 4660, 4860, 5592, 5832, 6291, 6480, 6990, 7290, 7456, 7776, 8388, 8748, 9320, 9720, 10485, 10935, 11184, 11664, 12582, 12960, 13980, 14580, 16776, 17496, 18640, 18873, 19440, 20970, 21870, 22368, 23328, 25164, 27960, 29160, 31455, 33552, 34992, 37280, 37746, 38880, 41940, 43740, 50328, 55920, 56619, 58320, 62910, 67104, 69984, 75492, 83880, 87480, 94365, 100656, 111840, 113238, 116640, 125820, 150984, 167760, 169857, 174960, 188730, 201312, 226476, 251640, 283095, 301968, 335520, 339714, 349920, 377460, 452952, 503280, 509571, 566190, 603936, 679428, 754920, 849285, 905904, 1006560, 1019142, 1132380, 1358856, 1509840, 1698570, 1811808, 2038284, 2264760, 2547855, 2717712, 3019680, 3397140, 4076568, 4529520, 5095710, 5435424, 6794280, 8153136, 9059040, 10191420, 13588560, 16306272, 20382840, 27177120, 40765680, 81531360]

約数ペア:

[(1, 81531360), (2, 40765680), (3, 27177120), (4, 20382840), (5, 16306272), (6, 13588560), (8, 10191420), (9, 9059040), (10, 8153136), (12, 6794280), (15, 5435424), (16, 5095710), (18, 4529520), (20, 4076568), (24, 3397140), (27, 3019680), (30, 2717712), (32, 2547855), (36, 2264760), (40, 2038284), (45, 1811808), (48, 1698570), (54, 1509840), (60, 1358856), (72, 1132380), (80, 1019142), (81, 1006560), (90, 905904), (96, 849285), (108, 754920), (120, 679428), (135, 603936), (144, 566190), (160, 509571), (162, 503280), (180, 452952), (216, 377460), (233, 349920), (240, 339714), (243, 335520), (270, 301968), (288, 283095), (324, 251640), (360, 226476), (405, 201312), (432, 188730), (466, 174960), (480, 169857), (486, 167760), (540, 150984), (648, 125820), (699, 116640), (720, 113238), (729, 111840), (810, 100656), (864, 94365), (932, 87480), (972, 83880), (1080, 75492), (1165, 69984), (1215, 67104), (1296, 62910), (1398, 58320), (1440, 56619), (1458, 55920), (1620, 50328), (1864, 43740), (1944, 41940), (2097, 38880), (2160, 37746), (2187, 37280), (2330, 34992), (2430, 33552), (2592, 31455), (2796, 29160), (2916, 27960), (3240, 25164), (3495, 23328), (3645, 22368), (3728, 21870), (3888, 20970), (4194, 19440), (4320, 18873), (4374, 18640), (4660, 17496), (4860, 16776), (5592, 14580), (5832, 13980), (6291, 12960), (6480, 12582), (6990, 11664), (7290, 11184), (7456, 10935), (7776, 10485), (8388, 9720), (8748, 9320)]