21559680

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:241

約数の個数: 192

約数和(自身を含む): 78764400

約数和(自身を除く): 57204720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 128, 144, 152, 160, 171, 180, 190, 192, 197, 228, 240, 285, 288, 304, 320, 342, 360, 380, 384, 394, 456, 480, 570, 576, 591, 608, 640, 684, 720, 760, 788, 855, 912, 960, 985, 1140, 1152, 1182, 1216, 1368, 1440, 1520, 1576, 1710, 1773, 1824, 1920, 1970, 2280, 2364, 2432, 2736, 2880, 2955, 3040, 3152, 3420, 3546, 3648, 3743, 3940, 4560, 4728, 5472, 5760, 5910, 6080, 6304, 6840, 7092, 7296, 7486, 7880, 8865, 9120, 9456, 10944, 11229, 11820, 12160, 12608, 13680, 14184, 14972, 15760, 17730, 18240, 18715, 18912, 21888, 22458, 23640, 25216, 27360, 28368, 29944, 31520, 33687, 35460, 36480, 37430, 37824, 44916, 47280, 54720, 56145, 56736, 59888, 63040, 67374, 70920, 74860, 75648, 89832, 94560, 109440, 112290, 113472, 119776, 126080, 134748, 141840, 149720, 168435, 179664, 189120, 224580, 226944, 239552, 269496, 283680, 299440, 336870, 359328, 378240, 449160, 479104, 538992, 567360, 598880, 673740, 718656, 898320, 1077984, 1134720, 1197760, 1347480, 1437312, 1796640, 2155968, 2395520, 2694960, 3593280, 4311936, 5389920, 7186560, 10779840, 21559680]

約数ペア:

[(1, 21559680), (2, 10779840), (3, 7186560), (4, 5389920), (5, 4311936), (6, 3593280), (8, 2694960), (9, 2395520), (10, 2155968), (12, 1796640), (15, 1437312), (16, 1347480), (18, 1197760), (19, 1134720), (20, 1077984), (24, 898320), (30, 718656), (32, 673740), (36, 598880), (38, 567360), (40, 538992), (45, 479104), (48, 449160), (57, 378240), (60, 359328), (64, 336870), (72, 299440), (76, 283680), (80, 269496), (90, 239552), (95, 226944), (96, 224580), (114, 189120), (120, 179664), (128, 168435), (144, 149720), (152, 141840), (160, 134748), (171, 126080), (180, 119776), (190, 113472), (192, 112290), (197, 109440), (228, 94560), (240, 89832), (285, 75648), (288, 74860), (304, 70920), (320, 67374), (342, 63040), (360, 59888), (380, 56736), (384, 56145), (394, 54720), (456, 47280), (480, 44916), (570, 37824), (576, 37430), (591, 36480), (608, 35460), (640, 33687), (684, 31520), (720, 29944), (760, 28368), (788, 27360), (855, 25216), (912, 23640), (960, 22458), (985, 21888), (1140, 18912), (1152, 18715), (1182, 18240), (1216, 17730), (1368, 15760), (1440, 14972), (1520, 14184), (1576, 13680), (1710, 12608), (1773, 12160), (1824, 11820), (1920, 11229), (1970, 10944), (2280, 9456), (2364, 9120), (2432, 8865), (2736, 7880), (2880, 7486), (2955, 7296), (3040, 7092), (3152, 6840), (3420, 6304), (3546, 6080), (3648, 5910), (3743, 5760), (3940, 5472), (4560, 4728)]