21778560

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:243

約数の個数: 192

約数和(自身を含む): 79560000

約数和(自身を除く): 57781440

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, 199, 228, 240, 285, 288, 304, 320, 342, 360, 380, 384, 398, 456, 480, 570, 576, 597, 608, 640, 684, 720, 760, 796, 855, 912, 960, 995, 1140, 1152, 1194, 1216, 1368, 1440, 1520, 1592, 1710, 1791, 1824, 1920, 1990, 2280, 2388, 2432, 2736, 2880, 2985, 3040, 3184, 3420, 3582, 3648, 3781, 3980, 4560, 4776, 5472, 5760, 5970, 6080, 6368, 6840, 7164, 7296, 7562, 7960, 8955, 9120, 9552, 10944, 11343, 11940, 12160, 12736, 13680, 14328, 15124, 15920, 17910, 18240, 18905, 19104, 21888, 22686, 23880, 25472, 27360, 28656, 30248, 31840, 34029, 35820, 36480, 37810, 38208, 45372, 47760, 54720, 56715, 57312, 60496, 63680, 68058, 71640, 75620, 76416, 90744, 95520, 109440, 113430, 114624, 120992, 127360, 136116, 143280, 151240, 170145, 181488, 191040, 226860, 229248, 241984, 272232, 286560, 302480, 340290, 362976, 382080, 453720, 483968, 544464, 573120, 604960, 680580, 725952, 907440, 1088928, 1146240, 1209920, 1361160, 1451904, 1814880, 2177856, 2419840, 2722320, 3629760, 4355712, 5444640, 7259520, 10889280, 21778560]

約数ペア:

[(1, 21778560), (2, 10889280), (3, 7259520), (4, 5444640), (5, 4355712), (6, 3629760), (8, 2722320), (9, 2419840), (10, 2177856), (12, 1814880), (15, 1451904), (16, 1361160), (18, 1209920), (19, 1146240), (20, 1088928), (24, 907440), (30, 725952), (32, 680580), (36, 604960), (38, 573120), (40, 544464), (45, 483968), (48, 453720), (57, 382080), (60, 362976), (64, 340290), (72, 302480), (76, 286560), (80, 272232), (90, 241984), (95, 229248), (96, 226860), (114, 191040), (120, 181488), (128, 170145), (144, 151240), (152, 143280), (160, 136116), (171, 127360), (180, 120992), (190, 114624), (192, 113430), (199, 109440), (228, 95520), (240, 90744), (285, 76416), (288, 75620), (304, 71640), (320, 68058), (342, 63680), (360, 60496), (380, 57312), (384, 56715), (398, 54720), (456, 47760), (480, 45372), (570, 38208), (576, 37810), (597, 36480), (608, 35820), (640, 34029), (684, 31840), (720, 30248), (760, 28656), (796, 27360), (855, 25472), (912, 23880), (960, 22686), (995, 21888), (1140, 19104), (1152, 18905), (1194, 18240), (1216, 17910), (1368, 15920), (1440, 15124), (1520, 14328), (1592, 13680), (1710, 12736), (1791, 12160), (1824, 11940), (1920, 11343), (1990, 10944), (2280, 9552), (2388, 9120), (2432, 8955), (2736, 7960), (2880, 7562), (2985, 7296), (3040, 7164), (3184, 6840), (3420, 6368), (3582, 6080), (3648, 5970), (3781, 5760), (3980, 5472), (4560, 4776)]