278218080

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{3943}}^1$

素因数の和:3978

約数の個数: 216

約数和(自身を含む): 1104706512

約数和(自身を除く): 826488432

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, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 336, 360, 392, 420, 441, 480, 490, 504, 560, 588, 630, 672, 720, 735, 784, 840, 882, 980, 1008, 1120, 1176, 1260, 1440, 1470, 1568, 1680, 1764, 1960, 2016, 2205, 2352, 2520, 2940, 3360, 3528, 3920, 3943, 4410, 4704, 5040, 5880, 7056, 7840, 7886, 8820, 10080, 11760, 11829, 14112, 15772, 17640, 19715, 23520, 23658, 27601, 31544, 35280, 35487, 39430, 47316, 55202, 59145, 63088, 70560, 70974, 78860, 82803, 94632, 110404, 118290, 126176, 138005, 141948, 157720, 165606, 177435, 189264, 193207, 220808, 236580, 248409, 276010, 283896, 315440, 331212, 354870, 378528, 386414, 414015, 441616, 473160, 496818, 552020, 567792, 579621, 630880, 662424, 709740, 772828, 828030, 883232, 946320, 966035, 993636, 1104040, 1135584, 1159242, 1242045, 1324848, 1419480, 1545656, 1656060, 1738863, 1892640, 1932070, 1987272, 2208080, 2318484, 2484090, 2649696, 2838960, 2898105, 3091312, 3312120, 3477726, 3864140, 3974544, 4416160, 4636968, 4968180, 5677920, 5796210, 6182624, 6624240, 6955452, 7728280, 7949088, 8694315, 9273936, 9936360, 11592420, 13248480, 13910904, 15456560, 17388630, 18547872, 19872720, 23184840, 27821808, 30913120, 34777260, 39745440, 46369680, 55643616, 69554520, 92739360, 139109040, 278218080]

約数ペア:

[(1, 278218080), (2, 139109040), (3, 92739360), (4, 69554520), (5, 55643616), (6, 46369680), (7, 39745440), (8, 34777260), (9, 30913120), (10, 27821808), (12, 23184840), (14, 19872720), (15, 18547872), (16, 17388630), (18, 15456560), (20, 13910904), (21, 13248480), (24, 11592420), (28, 9936360), (30, 9273936), (32, 8694315), (35, 7949088), (36, 7728280), (40, 6955452), (42, 6624240), (45, 6182624), (48, 5796210), (49, 5677920), (56, 4968180), (60, 4636968), (63, 4416160), (70, 3974544), (72, 3864140), (80, 3477726), (84, 3312120), (90, 3091312), (96, 2898105), (98, 2838960), (105, 2649696), (112, 2484090), (120, 2318484), (126, 2208080), (140, 1987272), (144, 1932070), (147, 1892640), (160, 1738863), (168, 1656060), (180, 1545656), (196, 1419480), (210, 1324848), (224, 1242045), (240, 1159242), (245, 1135584), (252, 1104040), (280, 993636), (288, 966035), (294, 946320), (315, 883232), (336, 828030), (360, 772828), (392, 709740), (420, 662424), (441, 630880), (480, 579621), (490, 567792), (504, 552020), (560, 496818), (588, 473160), (630, 441616), (672, 414015), (720, 386414), (735, 378528), (784, 354870), (840, 331212), (882, 315440), (980, 283896), (1008, 276010), (1120, 248409), (1176, 236580), (1260, 220808), (1440, 193207), (1470, 189264), (1568, 177435), (1680, 165606), (1764, 157720), (1960, 141948), (2016, 138005), (2205, 126176), (2352, 118290), (2520, 110404), (2940, 94632), (3360, 82803), (3528, 78860), (3920, 70974), (3943, 70560), (4410, 63088), (4704, 59145), (5040, 55202), (5880, 47316), (7056, 39430), (7840, 35487), (7886, 35280), (8820, 31544), (10080, 27601), (11760, 23658), (11829, 23520), (14112, 19715), (15772, 17640)]