20540920320

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3469}}^1$

素因数の和:3755

約数の個数: 240

約数和(自身を含む): 71436376440

約数和(自身を除く): 50895456120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 257, 288, 320, 360, 384, 480, 512, 514, 576, 640, 720, 768, 771, 960, 1028, 1152, 1280, 1285, 1440, 1536, 1542, 1920, 2056, 2304, 2313, 2560, 2570, 2880, 3084, 3469, 3840, 3855, 4112, 4608, 4626, 5140, 5760, 6168, 6938, 7680, 7710, 8224, 9252, 10280, 10407, 11520, 11565, 12336, 13876, 15420, 16448, 17345, 18504, 20560, 20814, 23040, 23130, 24672, 27752, 30840, 31221, 32896, 34690, 37008, 41120, 41628, 46260, 49344, 52035, 55504, 61680, 62442, 65792, 69380, 74016, 82240, 83256, 92520, 98688, 104070, 111008, 123360, 124884, 131584, 138760, 148032, 156105, 164480, 166512, 185040, 197376, 208140, 222016, 246720, 249768, 277520, 296064, 312210, 328960, 333024, 370080, 394752, 416280, 444032, 493440, 499536, 555040, 592128, 624420, 657920, 666048, 740160, 832560, 888064, 891533, 986880, 999072, 1110080, 1184256, 1248840, 1332096, 1480320, 1665120, 1776128, 1783066, 1973760, 1998144, 2220160, 2497680, 2664192, 2674599, 2960640, 3330240, 3566132, 3996288, 4440320, 4457665, 4995360, 5328384, 5349198, 5921280, 6660480, 7132264, 7992576, 8023797, 8880640, 8915330, 9990720, 10698396, 13320960, 13372995, 14264528, 15985152, 16047594, 17830660, 19981440, 21396792, 26641920, 26745990, 28529056, 32095188, 35661320, 39962880, 40118985, 42793584, 53491980, 57058112, 64190376, 71322640, 79925760, 80237970, 85587168, 106983960, 114116224, 128380752, 142645280, 160475940, 171174336, 213967920, 228232448, 256761504, 285290560, 320951880, 342348672, 427935840, 456464896, 513523008, 570581120, 641903760, 684697344, 855871680, 1027046016, 1141162240, 1283807520, 1369394688, 1711743360, 2054092032, 2282324480, 2567615040, 3423486720, 4108184064, 5135230080, 6846973440, 10270460160, 20540920320]

約数ペア:

[(1, 20540920320), (2, 10270460160), (3, 6846973440), (4, 5135230080), (5, 4108184064), (6, 3423486720), (8, 2567615040), (9, 2282324480), (10, 2054092032), (12, 1711743360), (15, 1369394688), (16, 1283807520), (18, 1141162240), (20, 1027046016), (24, 855871680), (30, 684697344), (32, 641903760), (36, 570581120), (40, 513523008), (45, 456464896), (48, 427935840), (60, 342348672), (64, 320951880), (72, 285290560), (80, 256761504), (90, 228232448), (96, 213967920), (120, 171174336), (128, 160475940), (144, 142645280), (160, 128380752), (180, 114116224), (192, 106983960), (240, 85587168), (256, 80237970), (257, 79925760), (288, 71322640), (320, 64190376), (360, 57058112), (384, 53491980), (480, 42793584), (512, 40118985), (514, 39962880), (576, 35661320), (640, 32095188), (720, 28529056), (768, 26745990), (771, 26641920), (960, 21396792), (1028, 19981440), (1152, 17830660), (1280, 16047594), (1285, 15985152), (1440, 14264528), (1536, 13372995), (1542, 13320960), (1920, 10698396), (2056, 9990720), (2304, 8915330), (2313, 8880640), (2560, 8023797), (2570, 7992576), (2880, 7132264), (3084, 6660480), (3469, 5921280), (3840, 5349198), (3855, 5328384), (4112, 4995360), (4608, 4457665), (4626, 4440320), (5140, 3996288), (5760, 3566132), (6168, 3330240), (6938, 2960640), (7680, 2674599), (7710, 2664192), (8224, 2497680), (9252, 2220160), (10280, 1998144), (10407, 1973760), (11520, 1783066), (11565, 1776128), (12336, 1665120), (13876, 1480320), (15420, 1332096), (16448, 1248840), (17345, 1184256), (18504, 1110080), (20560, 999072), (20814, 986880), (23040, 891533), (23130, 888064), (24672, 832560), (27752, 740160), (30840, 666048), (31221, 657920), (32896, 624420), (34690, 592128), (37008, 555040), (41120, 499536), (41628, 493440), (46260, 444032), (49344, 416280), (52035, 394752), (55504, 370080), (61680, 333024), (62442, 328960), (65792, 312210), (69380, 296064), (74016, 277520), (82240, 249768), (83256, 246720), (92520, 222016), (98688, 208140), (104070, 197376), (111008, 185040), (123360, 166512), (124884, 164480), (131584, 156105), (138760, 148032)]