216679680

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{2687}}^1$

素因数の和:2721

約数の個数: 216

約数和(自身を含む): 857106432

約数和(自身を除く): 640426752

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2687, 2688, 2880, 3360, 3840, 4032, 4480, 5040, 5374, 5376, 5760, 6720, 8061, 8064, 8960, 10080, 10748, 11520, 13435, 13440, 16122, 16128, 18809, 20160, 21496, 24183, 26870, 26880, 32244, 37618, 40305, 40320, 42992, 48366, 53740, 56427, 64488, 75236, 80610, 80640, 85984, 94045, 96732, 107480, 112854, 120915, 128976, 150472, 161220, 169281, 171968, 188090, 193464, 214960, 225708, 241830, 257952, 282135, 300944, 322440, 338562, 343936, 376180, 386928, 429920, 451416, 483660, 515904, 564270, 601888, 644880, 677124, 687872, 752360, 773856, 846405, 859840, 902832, 967320, 1031808, 1128540, 1203776, 1289760, 1354248, 1504720, 1547712, 1692810, 1719680, 1805664, 1934640, 2063616, 2257080, 2407552, 2579520, 2708496, 3009440, 3095424, 3385620, 3439360, 3611328, 3869280, 4514160, 4815104, 5159040, 5416992, 6018880, 6190848, 6771240, 7222656, 7738560, 9028320, 10318080, 10833984, 12037760, 13542480, 14445312, 15477120, 18056640, 21667968, 24075520, 27084960, 30954240, 36113280, 43335936, 54169920, 72226560, 108339840, 216679680]

約数ペア:

[(1, 216679680), (2, 108339840), (3, 72226560), (4, 54169920), (5, 43335936), (6, 36113280), (7, 30954240), (8, 27084960), (9, 24075520), (10, 21667968), (12, 18056640), (14, 15477120), (15, 14445312), (16, 13542480), (18, 12037760), (20, 10833984), (21, 10318080), (24, 9028320), (28, 7738560), (30, 7222656), (32, 6771240), (35, 6190848), (36, 6018880), (40, 5416992), (42, 5159040), (45, 4815104), (48, 4514160), (56, 3869280), (60, 3611328), (63, 3439360), (64, 3385620), (70, 3095424), (72, 3009440), (80, 2708496), (84, 2579520), (90, 2407552), (96, 2257080), (105, 2063616), (112, 1934640), (120, 1805664), (126, 1719680), (128, 1692810), (140, 1547712), (144, 1504720), (160, 1354248), (168, 1289760), (180, 1203776), (192, 1128540), (210, 1031808), (224, 967320), (240, 902832), (252, 859840), (256, 846405), (280, 773856), (288, 752360), (315, 687872), (320, 677124), (336, 644880), (360, 601888), (384, 564270), (420, 515904), (448, 483660), (480, 451416), (504, 429920), (560, 386928), (576, 376180), (630, 343936), (640, 338562), (672, 322440), (720, 300944), (768, 282135), (840, 257952), (896, 241830), (960, 225708), (1008, 214960), (1120, 193464), (1152, 188090), (1260, 171968), (1280, 169281), (1344, 161220), (1440, 150472), (1680, 128976), (1792, 120915), (1920, 112854), (2016, 107480), (2240, 96732), (2304, 94045), (2520, 85984), (2687, 80640), (2688, 80610), (2880, 75236), (3360, 64488), (3840, 56427), (4032, 53740), (4480, 48366), (5040, 42992), (5374, 40320), (5376, 40305), (5760, 37618), (6720, 32244), (8061, 26880), (8064, 26870), (8960, 24183), (10080, 21496), (10748, 20160), (11520, 18809), (13435, 16128), (13440, 16122)]