20039040

素因数分解:

$2^7\times 3^2\times 5^1\times 7^2\times {\mathrm{71}}^1$

素因数の和:110

約数の個数: 288

約数和(自身を含む): 81628560

約数和(自身を除く): 61589520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 71, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 128, 140, 142, 144, 147, 160, 168, 180, 192, 196, 210, 213, 224, 240, 245, 252, 280, 284, 288, 294, 315, 320, 336, 355, 360, 384, 392, 420, 426, 441, 448, 480, 490, 497, 504, 560, 568, 576, 588, 630, 639, 640, 672, 710, 720, 735, 784, 840, 852, 882, 896, 960, 980, 994, 1008, 1065, 1120, 1136, 1152, 1176, 1260, 1278, 1344, 1420, 1440, 1470, 1491, 1568, 1680, 1704, 1764, 1920, 1960, 1988, 2016, 2130, 2205, 2240, 2272, 2352, 2485, 2520, 2556, 2688, 2840, 2880, 2940, 2982, 3136, 3195, 3360, 3408, 3479, 3528, 3920, 3976, 4032, 4260, 4410, 4473, 4480, 4544, 4704, 4970, 5040, 5112, 5680, 5760, 5880, 5964, 6272, 6390, 6720, 6816, 6958, 7056, 7455, 7840, 7952, 8064, 8520, 8820, 8946, 9088, 9408, 9940, 10080, 10224, 10437, 11360, 11760, 11928, 12780, 13440, 13632, 13916, 14112, 14910, 15680, 15904, 17040, 17395, 17640, 17892, 18816, 19880, 20160, 20448, 20874, 22365, 22720, 23520, 23856, 25560, 27264, 27832, 28224, 29820, 31311, 31360, 31808, 34080, 34790, 35280, 35784, 39760, 40320, 40896, 41748, 44730, 45440, 47040, 47712, 51120, 52185, 55664, 56448, 59640, 62622, 63616, 68160, 69580, 70560, 71568, 79520, 81792, 83496, 89460, 94080, 95424, 102240, 104370, 111328, 119280, 125244, 136320, 139160, 141120, 143136, 156555, 159040, 166992, 178920, 190848, 204480, 208740, 222656, 238560, 250488, 278320, 282240, 286272, 313110, 318080, 333984, 357840, 408960, 417480, 445312, 477120, 500976, 556640, 572544, 626220, 667968, 715680, 834960, 954240, 1001952, 1113280, 1252440, 1335936, 1431360, 1669920, 2003904, 2226560, 2504880, 2862720, 3339840, 4007808, 5009760, 6679680, 10019520, 20039040]

約数ペア:

[(1, 20039040), (2, 10019520), (3, 6679680), (4, 5009760), (5, 4007808), (6, 3339840), (7, 2862720), (8, 2504880), (9, 2226560), (10, 2003904), (12, 1669920), (14, 1431360), (15, 1335936), (16, 1252440), (18, 1113280), (20, 1001952), (21, 954240), (24, 834960), (28, 715680), (30, 667968), (32, 626220), (35, 572544), (36, 556640), (40, 500976), (42, 477120), (45, 445312), (48, 417480), (49, 408960), (56, 357840), (60, 333984), (63, 318080), (64, 313110), (70, 286272), (71, 282240), (72, 278320), (80, 250488), (84, 238560), (90, 222656), (96, 208740), (98, 204480), (105, 190848), (112, 178920), (120, 166992), (126, 159040), (128, 156555), (140, 143136), (142, 141120), (144, 139160), (147, 136320), (160, 125244), (168, 119280), (180, 111328), (192, 104370), (196, 102240), (210, 95424), (213, 94080), (224, 89460), (240, 83496), (245, 81792), (252, 79520), (280, 71568), (284, 70560), (288, 69580), (294, 68160), (315, 63616), (320, 62622), (336, 59640), (355, 56448), (360, 55664), (384, 52185), (392, 51120), (420, 47712), (426, 47040), (441, 45440), (448, 44730), (480, 41748), (490, 40896), (497, 40320), (504, 39760), (560, 35784), (568, 35280), (576, 34790), (588, 34080), (630, 31808), (639, 31360), (640, 31311), (672, 29820), (710, 28224), (720, 27832), (735, 27264), (784, 25560), (840, 23856), (852, 23520), (882, 22720), (896, 22365), (960, 20874), (980, 20448), (994, 20160), (1008, 19880), (1065, 18816), (1120, 17892), (1136, 17640), (1152, 17395), (1176, 17040), (1260, 15904), (1278, 15680), (1344, 14910), (1420, 14112), (1440, 13916), (1470, 13632), (1491, 13440), (1568, 12780), (1680, 11928), (1704, 11760), (1764, 11360), (1920, 10437), (1960, 10224), (1988, 10080), (2016, 9940), (2130, 9408), (2205, 9088), (2240, 8946), (2272, 8820), (2352, 8520), (2485, 8064), (2520, 7952), (2556, 7840), (2688, 7455), (2840, 7056), (2880, 6958), (2940, 6816), (2982, 6720), (3136, 6390), (3195, 6272), (3360, 5964), (3408, 5880), (3479, 5760), (3528, 5680), (3920, 5112), (3976, 5040), (4032, 4970), (4260, 4704), (4410, 4544), (4473, 4480)]