1990481640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1\times {\mathrm{383}}^1$

素因数の和:696

約数の個数: 256

約数和(自身を含む): 7166361600

約数和(自身を除く): 5175879960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 269, 276, 280, 322, 345, 383, 420, 460, 483, 538, 552, 644, 690, 766, 805, 807, 840, 920, 966, 1076, 1149, 1288, 1345, 1380, 1532, 1610, 1614, 1883, 1915, 1932, 2152, 2298, 2415, 2681, 2690, 2760, 3064, 3220, 3228, 3766, 3830, 3864, 4035, 4596, 4830, 5362, 5380, 5649, 5745, 6187, 6440, 6456, 7532, 7660, 8043, 8070, 8809, 9192, 9415, 9660, 10724, 10760, 11298, 11490, 12374, 13405, 15064, 15320, 16086, 16140, 17618, 18561, 18830, 19320, 21448, 22596, 22980, 24748, 26427, 26810, 28245, 30935, 32172, 32280, 35236, 37122, 37660, 40215, 43309, 44045, 45192, 45960, 49496, 52854, 53620, 56490, 61663, 61870, 64344, 70472, 74244, 75320, 80430, 86618, 88090, 92805, 103027, 105708, 107240, 112980, 123326, 123740, 129927, 132135, 148488, 160860, 173236, 176180, 184989, 185610, 206054, 211416, 216545, 225960, 246652, 247480, 259854, 264270, 308315, 309081, 321720, 346472, 352360, 369978, 371220, 412108, 433090, 493304, 515135, 519708, 528540, 616630, 618162, 649635, 721189, 739956, 742440, 824216, 866180, 924945, 1030270, 1039416, 1057080, 1233260, 1236324, 1299270, 1442378, 1479912, 1545405, 1732360, 1849890, 2060540, 2163567, 2369621, 2466520, 2472648, 2598540, 2884756, 3090810, 3605945, 3699780, 4121080, 4327134, 4739242, 5197080, 5769512, 6181620, 7108863, 7211890, 7399560, 8654268, 9478484, 10817835, 11848105, 12363240, 14217726, 14423780, 16587347, 17308536, 18956968, 21635670, 23696210, 28435452, 28847560, 33174694, 35544315, 43271340, 47392420, 49762041, 56870904, 66349388, 71088630, 82936735, 86542680, 94784840, 99524082, 132698776, 142177260, 165873470, 199048164, 248810205, 284354520, 331746940, 398096328, 497620410, 663493880, 995240820, 1990481640]

約数ペア:

[(1, 1990481640), (2, 995240820), (3, 663493880), (4, 497620410), (5, 398096328), (6, 331746940), (7, 284354520), (8, 248810205), (10, 199048164), (12, 165873470), (14, 142177260), (15, 132698776), (20, 99524082), (21, 94784840), (23, 86542680), (24, 82936735), (28, 71088630), (30, 66349388), (35, 56870904), (40, 49762041), (42, 47392420), (46, 43271340), (56, 35544315), (60, 33174694), (69, 28847560), (70, 28435452), (84, 23696210), (92, 21635670), (105, 18956968), (115, 17308536), (120, 16587347), (138, 14423780), (140, 14217726), (161, 12363240), (168, 11848105), (184, 10817835), (210, 9478484), (230, 8654268), (269, 7399560), (276, 7211890), (280, 7108863), (322, 6181620), (345, 5769512), (383, 5197080), (420, 4739242), (460, 4327134), (483, 4121080), (538, 3699780), (552, 3605945), (644, 3090810), (690, 2884756), (766, 2598540), (805, 2472648), (807, 2466520), (840, 2369621), (920, 2163567), (966, 2060540), (1076, 1849890), (1149, 1732360), (1288, 1545405), (1345, 1479912), (1380, 1442378), (1532, 1299270), (1610, 1236324), (1614, 1233260), (1883, 1057080), (1915, 1039416), (1932, 1030270), (2152, 924945), (2298, 866180), (2415, 824216), (2681, 742440), (2690, 739956), (2760, 721189), (3064, 649635), (3220, 618162), (3228, 616630), (3766, 528540), (3830, 519708), (3864, 515135), (4035, 493304), (4596, 433090), (4830, 412108), (5362, 371220), (5380, 369978), (5649, 352360), (5745, 346472), (6187, 321720), (6440, 309081), (6456, 308315), (7532, 264270), (7660, 259854), (8043, 247480), (8070, 246652), (8809, 225960), (9192, 216545), (9415, 211416), (9660, 206054), (10724, 185610), (10760, 184989), (11298, 176180), (11490, 173236), (12374, 160860), (13405, 148488), (15064, 132135), (15320, 129927), (16086, 123740), (16140, 123326), (17618, 112980), (18561, 107240), (18830, 105708), (19320, 103027), (21448, 92805), (22596, 88090), (22980, 86618), (24748, 80430), (26427, 75320), (26810, 74244), (28245, 70472), (30935, 64344), (32172, 61870), (32280, 61663), (35236, 56490), (37122, 53620), (37660, 52854), (40215, 49496), (43309, 45960), (44045, 45192)]