2820180240

素因数分解:

$2^4\times 3^{11}\times 5^1\times {\mathrm{199}}^1$

素因数の和:245

約数の個数: 240

約数和(自身を含む): 9884784000

約数和(自身を除く): 7064603760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 199, 216, 240, 243, 270, 324, 360, 398, 405, 432, 486, 540, 597, 648, 720, 729, 796, 810, 972, 995, 1080, 1194, 1215, 1296, 1458, 1592, 1620, 1791, 1944, 1990, 2160, 2187, 2388, 2430, 2916, 2985, 3184, 3240, 3582, 3645, 3888, 3980, 4374, 4776, 4860, 5373, 5832, 5970, 6480, 6561, 7164, 7290, 7960, 8748, 8955, 9552, 9720, 10746, 10935, 11664, 11940, 13122, 14328, 14580, 15920, 16119, 17496, 17910, 19440, 19683, 21492, 21870, 23880, 26244, 26865, 28656, 29160, 32238, 32805, 34992, 35820, 39366, 42984, 43740, 47760, 48357, 52488, 53730, 58320, 59049, 64476, 65610, 71640, 78732, 80595, 85968, 87480, 96714, 98415, 104976, 107460, 118098, 128952, 131220, 143280, 145071, 157464, 161190, 174960, 177147, 193428, 196830, 214920, 236196, 241785, 257904, 262440, 290142, 295245, 314928, 322380, 354294, 386856, 393660, 429840, 435213, 472392, 483570, 524880, 580284, 590490, 644760, 708588, 725355, 773712, 787320, 870426, 885735, 944784, 967140, 1160568, 1180980, 1289520, 1305639, 1417176, 1450710, 1574640, 1740852, 1771470, 1934280, 2176065, 2321136, 2361960, 2611278, 2834352, 2901420, 3481704, 3542940, 3868560, 3916917, 4352130, 4723920, 5222556, 5802840, 6528195, 6963408, 7085880, 7833834, 8704260, 10445112, 11605680, 11750751, 13056390, 14171760, 15667668, 17408520, 19584585, 20890224, 23501502, 26112780, 31335336, 34817040, 35252253, 39169170, 47003004, 52225560, 58753755, 62670672, 70504506, 78338340, 94006008, 104451120, 117507510, 141009012, 156676680, 176261265, 188012016, 235015020, 282018024, 313353360, 352522530, 470030040, 564036048, 705045060, 940060080, 1410090120, 2820180240]

約数ペア:

[(1, 2820180240), (2, 1410090120), (3, 940060080), (4, 705045060), (5, 564036048), (6, 470030040), (8, 352522530), (9, 313353360), (10, 282018024), (12, 235015020), (15, 188012016), (16, 176261265), (18, 156676680), (20, 141009012), (24, 117507510), (27, 104451120), (30, 94006008), (36, 78338340), (40, 70504506), (45, 62670672), (48, 58753755), (54, 52225560), (60, 47003004), (72, 39169170), (80, 35252253), (81, 34817040), (90, 31335336), (108, 26112780), (120, 23501502), (135, 20890224), (144, 19584585), (162, 17408520), (180, 15667668), (199, 14171760), (216, 13056390), (240, 11750751), (243, 11605680), (270, 10445112), (324, 8704260), (360, 7833834), (398, 7085880), (405, 6963408), (432, 6528195), (486, 5802840), (540, 5222556), (597, 4723920), (648, 4352130), (720, 3916917), (729, 3868560), (796, 3542940), (810, 3481704), (972, 2901420), (995, 2834352), (1080, 2611278), (1194, 2361960), (1215, 2321136), (1296, 2176065), (1458, 1934280), (1592, 1771470), (1620, 1740852), (1791, 1574640), (1944, 1450710), (1990, 1417176), (2160, 1305639), (2187, 1289520), (2388, 1180980), (2430, 1160568), (2916, 967140), (2985, 944784), (3184, 885735), (3240, 870426), (3582, 787320), (3645, 773712), (3888, 725355), (3980, 708588), (4374, 644760), (4776, 590490), (4860, 580284), (5373, 524880), (5832, 483570), (5970, 472392), (6480, 435213), (6561, 429840), (7164, 393660), (7290, 386856), (7960, 354294), (8748, 322380), (8955, 314928), (9552, 295245), (9720, 290142), (10746, 262440), (10935, 257904), (11664, 241785), (11940, 236196), (13122, 214920), (14328, 196830), (14580, 193428), (15920, 177147), (16119, 174960), (17496, 161190), (17910, 157464), (19440, 145071), (19683, 143280), (21492, 131220), (21870, 128952), (23880, 118098), (26244, 107460), (26865, 104976), (28656, 98415), (29160, 96714), (32238, 87480), (32805, 85968), (34992, 80595), (35820, 78732), (39366, 71640), (42984, 65610), (43740, 64476), (47760, 59049), (48357, 58320), (52488, 53730)]