205720320

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{317}}^1$

素因数の和:367

約数の個数: 216

約数和(自身を含む): 713691216

約数和(自身を除く): 507970896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 169, 192, 195, 208, 240, 256, 260, 312, 317, 320, 338, 384, 390, 416, 480, 507, 520, 624, 634, 640, 676, 768, 780, 832, 845, 951, 960, 1014, 1040, 1248, 1268, 1280, 1352, 1560, 1585, 1664, 1690, 1902, 1920, 2028, 2080, 2496, 2535, 2536, 2704, 3120, 3170, 3328, 3380, 3804, 3840, 4056, 4121, 4160, 4755, 4992, 5070, 5072, 5408, 6240, 6340, 6760, 7608, 8112, 8242, 8320, 9510, 9984, 10140, 10144, 10816, 12363, 12480, 12680, 13520, 15216, 16224, 16484, 16640, 19020, 20280, 20288, 20605, 21632, 24726, 24960, 25360, 27040, 30432, 32448, 32968, 38040, 40560, 40576, 41210, 43264, 49452, 49920, 50720, 53573, 54080, 60864, 61815, 64896, 65936, 76080, 81120, 81152, 82420, 98904, 101440, 107146, 108160, 121728, 123630, 129792, 131872, 152160, 160719, 162240, 164840, 197808, 202880, 214292, 216320, 243456, 247260, 263744, 267865, 304320, 321438, 324480, 329680, 395616, 405760, 428584, 494520, 527488, 535730, 608640, 642876, 648960, 659360, 791232, 803595, 857168, 989040, 1054976, 1071460, 1217280, 1285752, 1318720, 1582464, 1607190, 1714336, 1978080, 2142920, 2571504, 2637440, 3164928, 3214380, 3428672, 3956160, 4285840, 5143008, 5274880, 6428760, 6857344, 7912320, 8571680, 10286016, 12857520, 13714688, 15824640, 17143360, 20572032, 25715040, 34286720, 41144064, 51430080, 68573440, 102860160, 205720320]

約数ペア:

[(1, 205720320), (2, 102860160), (3, 68573440), (4, 51430080), (5, 41144064), (6, 34286720), (8, 25715040), (10, 20572032), (12, 17143360), (13, 15824640), (15, 13714688), (16, 12857520), (20, 10286016), (24, 8571680), (26, 7912320), (30, 6857344), (32, 6428760), (39, 5274880), (40, 5143008), (48, 4285840), (52, 3956160), (60, 3428672), (64, 3214380), (65, 3164928), (78, 2637440), (80, 2571504), (96, 2142920), (104, 1978080), (120, 1714336), (128, 1607190), (130, 1582464), (156, 1318720), (160, 1285752), (169, 1217280), (192, 1071460), (195, 1054976), (208, 989040), (240, 857168), (256, 803595), (260, 791232), (312, 659360), (317, 648960), (320, 642876), (338, 608640), (384, 535730), (390, 527488), (416, 494520), (480, 428584), (507, 405760), (520, 395616), (624, 329680), (634, 324480), (640, 321438), (676, 304320), (768, 267865), (780, 263744), (832, 247260), (845, 243456), (951, 216320), (960, 214292), (1014, 202880), (1040, 197808), (1248, 164840), (1268, 162240), (1280, 160719), (1352, 152160), (1560, 131872), (1585, 129792), (1664, 123630), (1690, 121728), (1902, 108160), (1920, 107146), (2028, 101440), (2080, 98904), (2496, 82420), (2535, 81152), (2536, 81120), (2704, 76080), (3120, 65936), (3170, 64896), (3328, 61815), (3380, 60864), (3804, 54080), (3840, 53573), (4056, 50720), (4121, 49920), (4160, 49452), (4755, 43264), (4992, 41210), (5070, 40576), (5072, 40560), (5408, 38040), (6240, 32968), (6340, 32448), (6760, 30432), (7608, 27040), (8112, 25360), (8242, 24960), (8320, 24726), (9510, 21632), (9984, 20605), (10140, 20288), (10144, 20280), (10816, 19020), (12363, 16640), (12480, 16484), (12680, 16224), (13520, 15216)]