1234561920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:293

約数の個数: 256

約数和(自身を含む): 4079738880

約数和(自身を除く): 2845176960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 83, 96, 120, 122, 127, 128, 160, 166, 183, 192, 240, 244, 249, 254, 305, 320, 332, 366, 381, 384, 415, 480, 488, 498, 508, 610, 635, 640, 664, 732, 762, 830, 915, 960, 976, 996, 1016, 1220, 1245, 1270, 1328, 1464, 1524, 1660, 1830, 1905, 1920, 1952, 1992, 2032, 2440, 2490, 2540, 2656, 2928, 3048, 3320, 3660, 3810, 3904, 3984, 4064, 4880, 4980, 5063, 5080, 5312, 5856, 6096, 6640, 7320, 7620, 7747, 7808, 7968, 8128, 9760, 9960, 10126, 10160, 10541, 10624, 11712, 12192, 13280, 14640, 15189, 15240, 15494, 15936, 16256, 19520, 19920, 20252, 20320, 21082, 23241, 23424, 24384, 25315, 26560, 29280, 30378, 30480, 30988, 31623, 31872, 38735, 39040, 39840, 40504, 40640, 42164, 46482, 48768, 50630, 52705, 53120, 58560, 60756, 60960, 61976, 63246, 75945, 77470, 79680, 81008, 81280, 84328, 92964, 101260, 105410, 116205, 117120, 121512, 121920, 123952, 126492, 151890, 154940, 158115, 159360, 162016, 168656, 185928, 202520, 210820, 232410, 243024, 243840, 247904, 252984, 303780, 309880, 316230, 324032, 337312, 371856, 405040, 421640, 464820, 486048, 495808, 505968, 607560, 619760, 632460, 643001, 648064, 674624, 743712, 810080, 843280, 929640, 972096, 991616, 1011936, 1215120, 1239520, 1264920, 1286002, 1349248, 1487424, 1620160, 1686560, 1859280, 1929003, 1944192, 2023872, 2430240, 2479040, 2529840, 2572004, 2974848, 3215005, 3240320, 3373120, 3718560, 3858006, 4047744, 4860480, 4958080, 5059680, 5144008, 6430010, 6746240, 7437120, 7716012, 9645015, 9720960, 10119360, 10288016, 12860020, 14874240, 15432024, 19290030, 20238720, 20576032, 25720040, 30864048, 38580060, 41152064, 51440080, 61728096, 77160120, 82304128, 102880160, 123456192, 154320240, 205760320, 246912384, 308640480, 411520640, 617280960, 1234561920]

約数ペア:

[(1, 1234561920), (2, 617280960), (3, 411520640), (4, 308640480), (5, 246912384), (6, 205760320), (8, 154320240), (10, 123456192), (12, 102880160), (15, 82304128), (16, 77160120), (20, 61728096), (24, 51440080), (30, 41152064), (32, 38580060), (40, 30864048), (48, 25720040), (60, 20576032), (61, 20238720), (64, 19290030), (80, 15432024), (83, 14874240), (96, 12860020), (120, 10288016), (122, 10119360), (127, 9720960), (128, 9645015), (160, 7716012), (166, 7437120), (183, 6746240), (192, 6430010), (240, 5144008), (244, 5059680), (249, 4958080), (254, 4860480), (305, 4047744), (320, 3858006), (332, 3718560), (366, 3373120), (381, 3240320), (384, 3215005), (415, 2974848), (480, 2572004), (488, 2529840), (498, 2479040), (508, 2430240), (610, 2023872), (635, 1944192), (640, 1929003), (664, 1859280), (732, 1686560), (762, 1620160), (830, 1487424), (915, 1349248), (960, 1286002), (976, 1264920), (996, 1239520), (1016, 1215120), (1220, 1011936), (1245, 991616), (1270, 972096), (1328, 929640), (1464, 843280), (1524, 810080), (1660, 743712), (1830, 674624), (1905, 648064), (1920, 643001), (1952, 632460), (1992, 619760), (2032, 607560), (2440, 505968), (2490, 495808), (2540, 486048), (2656, 464820), (2928, 421640), (3048, 405040), (3320, 371856), (3660, 337312), (3810, 324032), (3904, 316230), (3984, 309880), (4064, 303780), (4880, 252984), (4980, 247904), (5063, 243840), (5080, 243024), (5312, 232410), (5856, 210820), (6096, 202520), (6640, 185928), (7320, 168656), (7620, 162016), (7747, 159360), (7808, 158115), (7968, 154940), (8128, 151890), (9760, 126492), (9960, 123952), (10126, 121920), (10160, 121512), (10541, 117120), (10624, 116205), (11712, 105410), (12192, 101260), (13280, 92964), (14640, 84328), (15189, 81280), (15240, 81008), (15494, 79680), (15936, 77470), (16256, 75945), (19520, 63246), (19920, 61976), (20252, 60960), (20320, 60756), (21082, 58560), (23241, 53120), (23424, 52705), (24384, 50630), (25315, 48768), (26560, 46482), (29280, 42164), (30378, 40640), (30480, 40504), (30988, 39840), (31623, 39040), (31872, 38735)]