19712160

素因数分解:

$2^5\times 3^6\times 5^1\times {\mathrm{13}}^2$

素因数の和:59

約数の個数: 252

約数和(自身を含む): 75607182

約数和(自身を除く): 55895022

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 162, 169, 180, 195, 208, 216, 234, 240, 243, 260, 270, 288, 312, 324, 338, 351, 360, 390, 405, 416, 432, 468, 480, 486, 507, 520, 540, 585, 624, 648, 676, 702, 720, 729, 780, 810, 845, 864, 936, 972, 1014, 1040, 1053, 1080, 1170, 1215, 1248, 1296, 1352, 1404, 1440, 1458, 1521, 1560, 1620, 1690, 1755, 1872, 1944, 2028, 2080, 2106, 2160, 2340, 2430, 2535, 2592, 2704, 2808, 2916, 3042, 3120, 3159, 3240, 3380, 3510, 3645, 3744, 3888, 4056, 4212, 4320, 4563, 4680, 4860, 5070, 5265, 5408, 5616, 5832, 6084, 6240, 6318, 6480, 6760, 7020, 7290, 7605, 7776, 8112, 8424, 9126, 9360, 9477, 9720, 10140, 10530, 11232, 11664, 12168, 12636, 12960, 13520, 13689, 14040, 14580, 15210, 15795, 16224, 16848, 18252, 18720, 18954, 19440, 20280, 21060, 22815, 23328, 24336, 25272, 27040, 27378, 28080, 29160, 30420, 31590, 33696, 36504, 37908, 38880, 40560, 41067, 42120, 45630, 47385, 48672, 50544, 54756, 56160, 58320, 60840, 63180, 68445, 73008, 75816, 81120, 82134, 84240, 91260, 94770, 101088, 109512, 116640, 121680, 123201, 126360, 136890, 146016, 151632, 164268, 168480, 182520, 189540, 205335, 219024, 243360, 246402, 252720, 273780, 303264, 328536, 365040, 379080, 410670, 438048, 492804, 505440, 547560, 616005, 657072, 730080, 758160, 821340, 985608, 1095120, 1232010, 1314144, 1516320, 1642680, 1971216, 2190240, 2464020, 3285360, 3942432, 4928040, 6570720, 9856080, 19712160]

約数ペア:

[(1, 19712160), (2, 9856080), (3, 6570720), (4, 4928040), (5, 3942432), (6, 3285360), (8, 2464020), (9, 2190240), (10, 1971216), (12, 1642680), (13, 1516320), (15, 1314144), (16, 1232010), (18, 1095120), (20, 985608), (24, 821340), (26, 758160), (27, 730080), (30, 657072), (32, 616005), (36, 547560), (39, 505440), (40, 492804), (45, 438048), (48, 410670), (52, 379080), (54, 365040), (60, 328536), (65, 303264), (72, 273780), (78, 252720), (80, 246402), (81, 243360), (90, 219024), (96, 205335), (104, 189540), (108, 182520), (117, 168480), (120, 164268), (130, 151632), (135, 146016), (144, 136890), (156, 126360), (160, 123201), (162, 121680), (169, 116640), (180, 109512), (195, 101088), (208, 94770), (216, 91260), (234, 84240), (240, 82134), (243, 81120), (260, 75816), (270, 73008), (288, 68445), (312, 63180), (324, 60840), (338, 58320), (351, 56160), (360, 54756), (390, 50544), (405, 48672), (416, 47385), (432, 45630), (468, 42120), (480, 41067), (486, 40560), (507, 38880), (520, 37908), (540, 36504), (585, 33696), (624, 31590), (648, 30420), (676, 29160), (702, 28080), (720, 27378), (729, 27040), (780, 25272), (810, 24336), (845, 23328), (864, 22815), (936, 21060), (972, 20280), (1014, 19440), (1040, 18954), (1053, 18720), (1080, 18252), (1170, 16848), (1215, 16224), (1248, 15795), (1296, 15210), (1352, 14580), (1404, 14040), (1440, 13689), (1458, 13520), (1521, 12960), (1560, 12636), (1620, 12168), (1690, 11664), (1755, 11232), (1872, 10530), (1944, 10140), (2028, 9720), (2080, 9477), (2106, 9360), (2160, 9126), (2340, 8424), (2430, 8112), (2535, 7776), (2592, 7605), (2704, 7290), (2808, 7020), (2916, 6760), (3042, 6480), (3120, 6318), (3159, 6240), (3240, 6084), (3380, 5832), (3510, 5616), (3645, 5408), (3744, 5265), (3888, 5070), (4056, 4860), (4212, 4680), (4320, 4563)]