21790080

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:138

約数の個数: 256

約数和(自身を含む): 83966400

約数和(自身を除く): 62176320

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, 64, 65, 72, 78, 80, 90, 96, 97, 104, 108, 117, 120, 128, 130, 135, 144, 156, 160, 180, 192, 194, 195, 208, 216, 234, 240, 260, 270, 288, 291, 312, 320, 351, 360, 384, 388, 390, 416, 432, 468, 480, 485, 520, 540, 576, 582, 585, 624, 640, 702, 720, 776, 780, 832, 864, 873, 936, 960, 970, 1040, 1080, 1152, 1164, 1170, 1248, 1261, 1404, 1440, 1455, 1552, 1560, 1664, 1728, 1746, 1755, 1872, 1920, 1940, 2080, 2160, 2328, 2340, 2496, 2522, 2619, 2808, 2880, 2910, 3104, 3120, 3456, 3492, 3510, 3744, 3783, 3880, 4160, 4320, 4365, 4656, 4680, 4992, 5044, 5238, 5616, 5760, 5820, 6208, 6240, 6305, 6984, 7020, 7488, 7566, 7760, 8320, 8640, 8730, 9312, 9360, 10088, 10476, 11232, 11349, 11640, 12416, 12480, 12610, 13095, 13968, 14040, 14976, 15132, 15520, 17280, 17460, 18624, 18720, 18915, 20176, 20952, 22464, 22698, 23280, 24960, 25220, 26190, 27936, 28080, 30264, 31040, 34047, 34920, 37248, 37440, 37830, 40352, 41904, 44928, 45396, 46560, 50440, 52380, 55872, 56160, 56745, 60528, 62080, 68094, 69840, 74880, 75660, 80704, 83808, 90792, 93120, 100880, 104760, 111744, 112320, 113490, 121056, 136188, 139680, 151320, 161408, 167616, 170235, 181584, 186240, 201760, 209520, 224640, 226980, 242112, 272376, 279360, 302640, 335232, 340470, 363168, 403520, 419040, 453960, 484224, 544752, 558720, 605280, 680940, 726336, 807040, 838080, 907920, 1089504, 1210560, 1361880, 1452672, 1676160, 1815840, 2179008, 2421120, 2723760, 3631680, 4358016, 5447520, 7263360, 10895040, 21790080]

約数ペア:

[(1, 21790080), (2, 10895040), (3, 7263360), (4, 5447520), (5, 4358016), (6, 3631680), (8, 2723760), (9, 2421120), (10, 2179008), (12, 1815840), (13, 1676160), (15, 1452672), (16, 1361880), (18, 1210560), (20, 1089504), (24, 907920), (26, 838080), (27, 807040), (30, 726336), (32, 680940), (36, 605280), (39, 558720), (40, 544752), (45, 484224), (48, 453960), (52, 419040), (54, 403520), (60, 363168), (64, 340470), (65, 335232), (72, 302640), (78, 279360), (80, 272376), (90, 242112), (96, 226980), (97, 224640), (104, 209520), (108, 201760), (117, 186240), (120, 181584), (128, 170235), (130, 167616), (135, 161408), (144, 151320), (156, 139680), (160, 136188), (180, 121056), (192, 113490), (194, 112320), (195, 111744), (208, 104760), (216, 100880), (234, 93120), (240, 90792), (260, 83808), (270, 80704), (288, 75660), (291, 74880), (312, 69840), (320, 68094), (351, 62080), (360, 60528), (384, 56745), (388, 56160), (390, 55872), (416, 52380), (432, 50440), (468, 46560), (480, 45396), (485, 44928), (520, 41904), (540, 40352), (576, 37830), (582, 37440), (585, 37248), (624, 34920), (640, 34047), (702, 31040), (720, 30264), (776, 28080), (780, 27936), (832, 26190), (864, 25220), (873, 24960), (936, 23280), (960, 22698), (970, 22464), (1040, 20952), (1080, 20176), (1152, 18915), (1164, 18720), (1170, 18624), (1248, 17460), (1261, 17280), (1404, 15520), (1440, 15132), (1455, 14976), (1552, 14040), (1560, 13968), (1664, 13095), (1728, 12610), (1746, 12480), (1755, 12416), (1872, 11640), (1920, 11349), (1940, 11232), (2080, 10476), (2160, 10088), (2328, 9360), (2340, 9312), (2496, 8730), (2522, 8640), (2619, 8320), (2808, 7760), (2880, 7566), (2910, 7488), (3104, 7020), (3120, 6984), (3456, 6305), (3492, 6240), (3510, 6208), (3744, 5820), (3783, 5760), (3880, 5616), (4160, 5238), (4320, 5044), (4365, 4992), (4656, 4680)]