21262080

素因数分解:

$2^8\times 3^1\times 5^1\times 7^2\times {\mathrm{113}}^1$

素因数の和:151

約数の個数: 216

約数和(自身を含む): 79691472

約数和(自身を除く): 58429392

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 113, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 226, 240, 245, 256, 280, 294, 320, 336, 339, 384, 392, 420, 448, 452, 480, 490, 560, 565, 588, 640, 672, 678, 735, 768, 784, 791, 840, 896, 904, 960, 980, 1120, 1130, 1176, 1280, 1344, 1356, 1470, 1568, 1582, 1680, 1695, 1792, 1808, 1920, 1960, 2240, 2260, 2352, 2373, 2688, 2712, 2940, 3136, 3164, 3360, 3390, 3616, 3840, 3920, 3955, 4480, 4520, 4704, 4746, 5376, 5424, 5537, 5880, 6272, 6328, 6720, 6780, 7232, 7840, 7910, 8960, 9040, 9408, 9492, 10848, 11074, 11760, 11865, 12544, 12656, 13440, 13560, 14464, 15680, 15820, 16611, 18080, 18816, 18984, 21696, 22148, 23520, 23730, 25312, 26880, 27120, 27685, 28928, 31360, 31640, 33222, 36160, 37632, 37968, 43392, 44296, 47040, 47460, 50624, 54240, 55370, 62720, 63280, 66444, 72320, 75936, 83055, 86784, 88592, 94080, 94920, 101248, 108480, 110740, 126560, 132888, 144640, 151872, 166110, 177184, 188160, 189840, 202496, 216960, 221480, 253120, 265776, 303744, 332220, 354368, 379680, 433920, 442960, 506240, 531552, 607488, 664440, 708736, 759360, 885920, 1012480, 1063104, 1328880, 1417472, 1518720, 1771840, 2126208, 2657760, 3037440, 3543680, 4252416, 5315520, 7087360, 10631040, 21262080]

約数ペア:

[(1, 21262080), (2, 10631040), (3, 7087360), (4, 5315520), (5, 4252416), (6, 3543680), (7, 3037440), (8, 2657760), (10, 2126208), (12, 1771840), (14, 1518720), (15, 1417472), (16, 1328880), (20, 1063104), (21, 1012480), (24, 885920), (28, 759360), (30, 708736), (32, 664440), (35, 607488), (40, 531552), (42, 506240), (48, 442960), (49, 433920), (56, 379680), (60, 354368), (64, 332220), (70, 303744), (80, 265776), (84, 253120), (96, 221480), (98, 216960), (105, 202496), (112, 189840), (113, 188160), (120, 177184), (128, 166110), (140, 151872), (147, 144640), (160, 132888), (168, 126560), (192, 110740), (196, 108480), (210, 101248), (224, 94920), (226, 94080), (240, 88592), (245, 86784), (256, 83055), (280, 75936), (294, 72320), (320, 66444), (336, 63280), (339, 62720), (384, 55370), (392, 54240), (420, 50624), (448, 47460), (452, 47040), (480, 44296), (490, 43392), (560, 37968), (565, 37632), (588, 36160), (640, 33222), (672, 31640), (678, 31360), (735, 28928), (768, 27685), (784, 27120), (791, 26880), (840, 25312), (896, 23730), (904, 23520), (960, 22148), (980, 21696), (1120, 18984), (1130, 18816), (1176, 18080), (1280, 16611), (1344, 15820), (1356, 15680), (1470, 14464), (1568, 13560), (1582, 13440), (1680, 12656), (1695, 12544), (1792, 11865), (1808, 11760), (1920, 11074), (1960, 10848), (2240, 9492), (2260, 9408), (2352, 9040), (2373, 8960), (2688, 7910), (2712, 7840), (2940, 7232), (3136, 6780), (3164, 6720), (3360, 6328), (3390, 6272), (3616, 5880), (3840, 5537), (3920, 5424), (3955, 5376), (4480, 4746), (4520, 4704)]