20808220160

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{499}}^1$

素因数の和:721

約数の個数: 320

約数和(自身を含む): 61871040000

約数和(自身を除く): 41062819840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 179, 182, 208, 224, 256, 260, 280, 320, 358, 364, 416, 448, 455, 499, 512, 520, 560, 640, 716, 728, 832, 895, 896, 910, 998, 1040, 1120, 1253, 1280, 1432, 1456, 1664, 1790, 1792, 1820, 1996, 2080, 2240, 2327, 2495, 2506, 2560, 2864, 2912, 3328, 3493, 3580, 3584, 3640, 3992, 4160, 4480, 4654, 4990, 5012, 5728, 5824, 6265, 6487, 6656, 6986, 7160, 7280, 7984, 8320, 8960, 9308, 9980, 10024, 11456, 11635, 11648, 12530, 12974, 13972, 14320, 14560, 15968, 16289, 16640, 17465, 17920, 18616, 19960, 20048, 22912, 23270, 23296, 25060, 25948, 27944, 28640, 29120, 31936, 32435, 32578, 33280, 34930, 37232, 39920, 40096, 45409, 45824, 46540, 46592, 50120, 51896, 55888, 57280, 58240, 63872, 64870, 65156, 69860, 74464, 79840, 80192, 81445, 89321, 90818, 91648, 93080, 100240, 103792, 111776, 114560, 116480, 127744, 129740, 130312, 139720, 148928, 159680, 160384, 162890, 178642, 181636, 186160, 200480, 207584, 223552, 227045, 229120, 232960, 255488, 259480, 260624, 279440, 297856, 319360, 320768, 325780, 357284, 363272, 372320, 400960, 415168, 446605, 447104, 454090, 458240, 518960, 521248, 558880, 595712, 625247, 638720, 641536, 651560, 714568, 726544, 744640, 801920, 830336, 893210, 894208, 908180, 1037920, 1042496, 1117760, 1161173, 1191424, 1250494, 1277440, 1303120, 1429136, 1453088, 1489280, 1603840, 1660672, 1786420, 1788416, 1816360, 2075840, 2084992, 2235520, 2322346, 2500988, 2606240, 2858272, 2906176, 2978560, 3126235, 3207680, 3321344, 3572840, 3632720, 4151680, 4169984, 4471040, 4644692, 5001976, 5212480, 5716544, 5805865, 5812352, 5957120, 6252470, 7145680, 7265440, 8128211, 8303360, 8339968, 8942080, 9289384, 10003952, 10424960, 11433088, 11611730, 11624704, 12504940, 14291360, 14530880, 16256422, 16606720, 18578768, 20007904, 20849920, 22866176, 23223460, 23249408, 25009880, 28582720, 29061760, 32512844, 37157536, 40015808, 40641055, 41699840, 45732352, 46446920, 50019760, 57165440, 58123520, 65025688, 74315072, 80031616, 81282110, 92893840, 100039520, 114330880, 116247040, 130051376, 148630144, 160063232, 162564220, 185787680, 200079040, 228661760, 260102752, 297260288, 320126464, 325128440, 371575360, 400158080, 520205504, 594520576, 650256880, 743150720, 800316160, 1040411008, 1300513760, 1486301440, 1600632320, 2080822016, 2601027520, 2972602880, 4161644032, 5202055040, 10404110080, 20808220160]

約数ペア:

[(1, 20808220160), (2, 10404110080), (4, 5202055040), (5, 4161644032), (7, 2972602880), (8, 2601027520), (10, 2080822016), (13, 1600632320), (14, 1486301440), (16, 1300513760), (20, 1040411008), (26, 800316160), (28, 743150720), (32, 650256880), (35, 594520576), (40, 520205504), (52, 400158080), (56, 371575360), (64, 325128440), (65, 320126464), (70, 297260288), (80, 260102752), (91, 228661760), (104, 200079040), (112, 185787680), (128, 162564220), (130, 160063232), (140, 148630144), (160, 130051376), (179, 116247040), (182, 114330880), (208, 100039520), (224, 92893840), (256, 81282110), (260, 80031616), (280, 74315072), (320, 65025688), (358, 58123520), (364, 57165440), (416, 50019760), (448, 46446920), (455, 45732352), (499, 41699840), (512, 40641055), (520, 40015808), (560, 37157536), (640, 32512844), (716, 29061760), (728, 28582720), (832, 25009880), (895, 23249408), (896, 23223460), (910, 22866176), (998, 20849920), (1040, 20007904), (1120, 18578768), (1253, 16606720), (1280, 16256422), (1432, 14530880), (1456, 14291360), (1664, 12504940), (1790, 11624704), (1792, 11611730), (1820, 11433088), (1996, 10424960), (2080, 10003952), (2240, 9289384), (2327, 8942080), (2495, 8339968), (2506, 8303360), (2560, 8128211), (2864, 7265440), (2912, 7145680), (3328, 6252470), (3493, 5957120), (3580, 5812352), (3584, 5805865), (3640, 5716544), (3992, 5212480), (4160, 5001976), (4480, 4644692), (4654, 4471040), (4990, 4169984), (5012, 4151680), (5728, 3632720), (5824, 3572840), (6265, 3321344), (6487, 3207680), (6656, 3126235), (6986, 2978560), (7160, 2906176), (7280, 2858272), (7984, 2606240), (8320, 2500988), (8960, 2322346), (9308, 2235520), (9980, 2084992), (10024, 2075840), (11456, 1816360), (11635, 1788416), (11648, 1786420), (12530, 1660672), (12974, 1603840), (13972, 1489280), (14320, 1453088), (14560, 1429136), (15968, 1303120), (16289, 1277440), (16640, 1250494), (17465, 1191424), (17920, 1161173), (18616, 1117760), (19960, 1042496), (20048, 1037920), (22912, 908180), (23270, 894208), (23296, 893210), (25060, 830336), (25948, 801920), (27944, 744640), (28640, 726544), (29120, 714568), (31936, 651560), (32435, 641536), (32578, 638720), (33280, 625247), (34930, 595712), (37232, 558880), (39920, 521248), (40096, 518960), (45409, 458240), (45824, 454090), (46540, 447104), (46592, 446605), (50120, 415168), (51896, 400960), (55888, 372320), (57280, 363272), (58240, 357284), (63872, 325780), (64870, 320768), (65156, 319360), (69860, 297856), (74464, 279440), (79840, 260624), (80192, 259480), (81445, 255488), (89321, 232960), (90818, 229120), (91648, 227045), (93080, 223552), (100240, 207584), (103792, 200480), (111776, 186160), (114560, 181636), (116480, 178642), (127744, 162890), (129740, 160384), (130312, 159680), (139720, 148928)]