21286830720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1\times {\mathrm{599}}^1$

素因数の和:927

約数の個数: 256

約数和(自身を含む): 69092352000

約数和(自身を除く): 47805521280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 83, 96, 120, 128, 160, 166, 192, 223, 240, 249, 320, 332, 384, 415, 446, 480, 498, 599, 640, 664, 669, 830, 892, 960, 996, 1115, 1198, 1245, 1328, 1338, 1660, 1784, 1797, 1920, 1992, 2230, 2396, 2490, 2656, 2676, 2995, 3320, 3345, 3568, 3594, 3984, 4460, 4792, 4980, 5312, 5352, 5990, 6640, 6690, 7136, 7188, 7968, 8920, 8985, 9584, 9960, 10624, 10704, 11980, 13280, 13380, 14272, 14376, 15936, 17840, 17970, 18509, 19168, 19920, 21408, 23960, 26560, 26760, 28544, 28752, 31872, 35680, 35940, 37018, 38336, 39840, 42816, 47920, 49717, 53120, 53520, 55527, 57504, 71360, 71880, 74036, 76672, 79680, 85632, 92545, 95840, 99434, 107040, 111054, 115008, 133577, 142720, 143760, 148072, 149151, 159360, 185090, 191680, 198868, 214080, 222108, 230016, 248585, 267154, 277635, 287520, 296144, 298302, 370180, 383360, 397736, 400731, 428160, 444216, 497170, 534308, 555270, 575040, 592288, 596604, 667885, 740360, 745755, 795472, 801462, 888432, 994340, 1068616, 1110540, 1150080, 1184576, 1193208, 1335770, 1480720, 1491510, 1590944, 1602924, 1776864, 1988680, 2003655, 2137232, 2221080, 2369152, 2386416, 2671540, 2961440, 2983020, 3181888, 3205848, 3553728, 3977360, 4007310, 4274464, 4442160, 4772832, 5343080, 5922880, 5966040, 6363776, 6411696, 7107456, 7954720, 8014620, 8548928, 8884320, 9545664, 10686160, 11086891, 11845760, 11932080, 12823392, 15909440, 16029240, 17097856, 17768640, 19091328, 21372320, 22173782, 23864160, 25646784, 31818880, 32058480, 33260673, 35537280, 42744640, 44347564, 47728320, 51293568, 55434455, 64116960, 66521346, 85489280, 88695128, 95456640, 110868910, 128233920, 133042692, 166303365, 177390256, 221737820, 256467840, 266085384, 332606730, 354780512, 443475640, 532170768, 665213460, 709561024, 886951280, 1064341536, 1330426920, 1419122048, 1773902560, 2128683072, 2660853840, 3547805120, 4257366144, 5321707680, 7095610240, 10643415360, 21286830720]

約数ペア:

[(1, 21286830720), (2, 10643415360), (3, 7095610240), (4, 5321707680), (5, 4257366144), (6, 3547805120), (8, 2660853840), (10, 2128683072), (12, 1773902560), (15, 1419122048), (16, 1330426920), (20, 1064341536), (24, 886951280), (30, 709561024), (32, 665213460), (40, 532170768), (48, 443475640), (60, 354780512), (64, 332606730), (80, 266085384), (83, 256467840), (96, 221737820), (120, 177390256), (128, 166303365), (160, 133042692), (166, 128233920), (192, 110868910), (223, 95456640), (240, 88695128), (249, 85489280), (320, 66521346), (332, 64116960), (384, 55434455), (415, 51293568), (446, 47728320), (480, 44347564), (498, 42744640), (599, 35537280), (640, 33260673), (664, 32058480), (669, 31818880), (830, 25646784), (892, 23864160), (960, 22173782), (996, 21372320), (1115, 19091328), (1198, 17768640), (1245, 17097856), (1328, 16029240), (1338, 15909440), (1660, 12823392), (1784, 11932080), (1797, 11845760), (1920, 11086891), (1992, 10686160), (2230, 9545664), (2396, 8884320), (2490, 8548928), (2656, 8014620), (2676, 7954720), (2995, 7107456), (3320, 6411696), (3345, 6363776), (3568, 5966040), (3594, 5922880), (3984, 5343080), (4460, 4772832), (4792, 4442160), (4980, 4274464), (5312, 4007310), (5352, 3977360), (5990, 3553728), (6640, 3205848), (6690, 3181888), (7136, 2983020), (7188, 2961440), (7968, 2671540), (8920, 2386416), (8985, 2369152), (9584, 2221080), (9960, 2137232), (10624, 2003655), (10704, 1988680), (11980, 1776864), (13280, 1602924), (13380, 1590944), (14272, 1491510), (14376, 1480720), (15936, 1335770), (17840, 1193208), (17970, 1184576), (18509, 1150080), (19168, 1110540), (19920, 1068616), (21408, 994340), (23960, 888432), (26560, 801462), (26760, 795472), (28544, 745755), (28752, 740360), (31872, 667885), (35680, 596604), (35940, 592288), (37018, 575040), (38336, 555270), (39840, 534308), (42816, 497170), (47920, 444216), (49717, 428160), (53120, 400731), (53520, 397736), (55527, 383360), (57504, 370180), (71360, 298302), (71880, 296144), (74036, 287520), (76672, 277635), (79680, 267154), (85632, 248585), (92545, 230016), (95840, 222108), (99434, 214080), (107040, 198868), (111054, 191680), (115008, 185090), (133577, 159360), (142720, 149151), (143760, 148072)]