81642240

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1$

素因数の和:419

約数の個数: 216

約数和(自身を含む): 298137840

約数和(自身を除く): 216495600

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, 228, 240, 256, 285, 288, 304, 320, 342, 360, 373, 380, 384, 456, 480, 570, 576, 608, 640, 684, 720, 746, 760, 768, 855, 912, 960, 1119, 1140, 1152, 1216, 1280, 1368, 1440, 1492, 1520, 1710, 1824, 1865, 1920, 2238, 2280, 2304, 2432, 2736, 2880, 2984, 3040, 3357, 3420, 3648, 3730, 3840, 4476, 4560, 4864, 5472, 5595, 5760, 5968, 6080, 6714, 6840, 7087, 7296, 7460, 8952, 9120, 10944, 11190, 11520, 11936, 12160, 13428, 13680, 14174, 14592, 14920, 16785, 17904, 18240, 21261, 21888, 22380, 23872, 24320, 26856, 27360, 28348, 29840, 33570, 35435, 35808, 36480, 42522, 43776, 44760, 47744, 53712, 54720, 56696, 59680, 63783, 67140, 70870, 71616, 72960, 85044, 89520, 95488, 106305, 107424, 109440, 113392, 119360, 127566, 134280, 141740, 143232, 170088, 179040, 212610, 214848, 218880, 226784, 238720, 255132, 268560, 283480, 286464, 318915, 340176, 358080, 425220, 429696, 453568, 477440, 510264, 537120, 566960, 637830, 680352, 716160, 850440, 859392, 907136, 1020528, 1074240, 1133920, 1275660, 1360704, 1432320, 1700880, 1814272, 2041056, 2148480, 2267840, 2551320, 2721408, 3401760, 4082112, 4296960, 4535680, 5102640, 5442816, 6803520, 8164224, 9071360, 10205280, 13607040, 16328448, 20410560, 27214080, 40821120, 81642240]

約数ペア:

[(1, 81642240), (2, 40821120), (3, 27214080), (4, 20410560), (5, 16328448), (6, 13607040), (8, 10205280), (9, 9071360), (10, 8164224), (12, 6803520), (15, 5442816), (16, 5102640), (18, 4535680), (19, 4296960), (20, 4082112), (24, 3401760), (30, 2721408), (32, 2551320), (36, 2267840), (38, 2148480), (40, 2041056), (45, 1814272), (48, 1700880), (57, 1432320), (60, 1360704), (64, 1275660), (72, 1133920), (76, 1074240), (80, 1020528), (90, 907136), (95, 859392), (96, 850440), (114, 716160), (120, 680352), (128, 637830), (144, 566960), (152, 537120), (160, 510264), (171, 477440), (180, 453568), (190, 429696), (192, 425220), (228, 358080), (240, 340176), (256, 318915), (285, 286464), (288, 283480), (304, 268560), (320, 255132), (342, 238720), (360, 226784), (373, 218880), (380, 214848), (384, 212610), (456, 179040), (480, 170088), (570, 143232), (576, 141740), (608, 134280), (640, 127566), (684, 119360), (720, 113392), (746, 109440), (760, 107424), (768, 106305), (855, 95488), (912, 89520), (960, 85044), (1119, 72960), (1140, 71616), (1152, 70870), (1216, 67140), (1280, 63783), (1368, 59680), (1440, 56696), (1492, 54720), (1520, 53712), (1710, 47744), (1824, 44760), (1865, 43776), (1920, 42522), (2238, 36480), (2280, 35808), (2304, 35435), (2432, 33570), (2736, 29840), (2880, 28348), (2984, 27360), (3040, 26856), (3357, 24320), (3420, 23872), (3648, 22380), (3730, 21888), (3840, 21261), (4476, 18240), (4560, 17904), (4864, 16785), (5472, 14920), (5595, 14592), (5760, 14174), (5968, 13680), (6080, 13428), (6714, 12160), (6840, 11936), (7087, 11520), (7296, 11190), (7460, 10944), (8952, 9120)]