20688757560

素因数分解:

$2^3\times 3^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3877}}^1$

素因数の和:3970

約数の個数: 256

約数和(自身を含む): 70976707200

約数和(自身を除く): 50287949640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 61, 72, 81, 90, 108, 120, 122, 135, 162, 180, 183, 216, 243, 244, 270, 305, 324, 360, 366, 405, 486, 488, 540, 549, 610, 648, 729, 732, 810, 915, 972, 1080, 1098, 1215, 1220, 1458, 1464, 1620, 1647, 1830, 1944, 2187, 2196, 2430, 2440, 2745, 2916, 3240, 3294, 3645, 3660, 3877, 4374, 4392, 4860, 4941, 5490, 5832, 6588, 7290, 7320, 7754, 8235, 8748, 9720, 9882, 10935, 10980, 11631, 13176, 14580, 14823, 15508, 16470, 17496, 19385, 19764, 21870, 21960, 23262, 24705, 29160, 29646, 31016, 32940, 34893, 38770, 39528, 43740, 44469, 46524, 49410, 58155, 59292, 65880, 69786, 74115, 77540, 87480, 88938, 93048, 98820, 104679, 116310, 118584, 133407, 139572, 148230, 155080, 174465, 177876, 197640, 209358, 222345, 232620, 236497, 266814, 279144, 296460, 314037, 348930, 355752, 418716, 444690, 465240, 472994, 523395, 533628, 592920, 628074, 667035, 697860, 709491, 837432, 889380, 942111, 945988, 1046790, 1067256, 1182485, 1256148, 1334070, 1395720, 1418982, 1570185, 1778760, 1884222, 1891976, 2093580, 2128473, 2364970, 2512296, 2668140, 2826333, 2837964, 3140370, 3547455, 3768444, 4187160, 4256946, 4710555, 4729940, 5336280, 5652666, 5675928, 6280740, 6385419, 7094910, 7536888, 8478999, 8513892, 9421110, 9459880, 10642365, 11305332, 12561480, 12770838, 14131665, 14189820, 16957998, 17027784, 18842220, 19156257, 21284730, 22610664, 25541676, 28263330, 28379640, 31927095, 33915996, 37684440, 38312514, 42394995, 42569460, 51083352, 56526660, 57468771, 63854190, 67831992, 76625028, 84789990, 85138920, 95781285, 113053320, 114937542, 127708380, 153250056, 169579980, 172406313, 191562570, 229875084, 255416760, 287343855, 339159960, 344812626, 383125140, 459750168, 517218939, 574687710, 689625252, 766250280, 862031565, 1034437878, 1149375420, 1379250504, 1724063130, 2068875756, 2298750840, 2586094695, 3448126260, 4137751512, 5172189390, 6896252520, 10344378780, 20688757560]

約数ペア:

[(1, 20688757560), (2, 10344378780), (3, 6896252520), (4, 5172189390), (5, 4137751512), (6, 3448126260), (8, 2586094695), (9, 2298750840), (10, 2068875756), (12, 1724063130), (15, 1379250504), (18, 1149375420), (20, 1034437878), (24, 862031565), (27, 766250280), (30, 689625252), (36, 574687710), (40, 517218939), (45, 459750168), (54, 383125140), (60, 344812626), (61, 339159960), (72, 287343855), (81, 255416760), (90, 229875084), (108, 191562570), (120, 172406313), (122, 169579980), (135, 153250056), (162, 127708380), (180, 114937542), (183, 113053320), (216, 95781285), (243, 85138920), (244, 84789990), (270, 76625028), (305, 67831992), (324, 63854190), (360, 57468771), (366, 56526660), (405, 51083352), (486, 42569460), (488, 42394995), (540, 38312514), (549, 37684440), (610, 33915996), (648, 31927095), (729, 28379640), (732, 28263330), (810, 25541676), (915, 22610664), (972, 21284730), (1080, 19156257), (1098, 18842220), (1215, 17027784), (1220, 16957998), (1458, 14189820), (1464, 14131665), (1620, 12770838), (1647, 12561480), (1830, 11305332), (1944, 10642365), (2187, 9459880), (2196, 9421110), (2430, 8513892), (2440, 8478999), (2745, 7536888), (2916, 7094910), (3240, 6385419), (3294, 6280740), (3645, 5675928), (3660, 5652666), (3877, 5336280), (4374, 4729940), (4392, 4710555), (4860, 4256946), (4941, 4187160), (5490, 3768444), (5832, 3547455), (6588, 3140370), (7290, 2837964), (7320, 2826333), (7754, 2668140), (8235, 2512296), (8748, 2364970), (9720, 2128473), (9882, 2093580), (10935, 1891976), (10980, 1884222), (11631, 1778760), (13176, 1570185), (14580, 1418982), (14823, 1395720), (15508, 1334070), (16470, 1256148), (17496, 1182485), (19385, 1067256), (19764, 1046790), (21870, 945988), (21960, 942111), (23262, 889380), (24705, 837432), (29160, 709491), (29646, 697860), (31016, 667035), (32940, 628074), (34893, 592920), (38770, 533628), (39528, 523395), (43740, 472994), (44469, 465240), (46524, 444690), (49410, 418716), (58155, 355752), (59292, 348930), (65880, 314037), (69786, 296460), (74115, 279144), (77540, 266814), (87480, 236497), (88938, 232620), (93048, 222345), (98820, 209358), (104679, 197640), (116310, 177876), (118584, 174465), (133407, 155080), (139572, 148230)]