278229840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{401}}^1$

素因数の和:490

約数の個数: 240

約数和(自身を含む): 1022880960

約数和(自身を除く): 744651120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 59, 60, 70, 80, 84, 98, 105, 112, 118, 120, 140, 147, 168, 177, 196, 210, 236, 240, 245, 280, 294, 295, 336, 354, 392, 401, 413, 420, 472, 490, 560, 588, 590, 708, 735, 784, 802, 826, 840, 885, 944, 980, 1176, 1180, 1203, 1239, 1416, 1470, 1604, 1652, 1680, 1770, 1960, 2005, 2065, 2352, 2360, 2406, 2478, 2807, 2832, 2891, 2940, 3208, 3304, 3540, 3920, 4010, 4130, 4720, 4812, 4956, 5614, 5782, 5880, 6015, 6195, 6416, 6608, 7080, 8020, 8260, 8421, 8673, 9624, 9912, 11228, 11564, 11760, 12030, 12390, 14035, 14160, 14455, 16040, 16520, 16842, 17346, 19248, 19649, 19824, 22456, 23128, 23659, 24060, 24780, 28070, 28910, 32080, 33040, 33684, 34692, 39298, 42105, 43365, 44912, 46256, 47318, 48120, 49560, 56140, 57820, 58947, 67368, 69384, 70977, 78596, 84210, 86730, 94636, 96240, 98245, 99120, 112280, 115640, 117894, 118295, 134736, 138768, 141954, 157192, 165613, 168420, 173460, 189272, 196490, 224560, 231280, 235788, 236590, 283908, 294735, 314384, 331226, 336840, 346920, 354885, 378544, 392980, 471576, 473180, 496839, 567816, 589470, 662452, 673680, 693840, 709770, 785960, 828065, 943152, 946360, 993678, 1135632, 1159291, 1178940, 1324904, 1419540, 1571920, 1656130, 1892720, 1987356, 2318582, 2357880, 2484195, 2649808, 2839080, 3312260, 3477873, 3974712, 4637164, 4715760, 4968390, 5678160, 5796455, 6624520, 6955746, 7949424, 9274328, 9936780, 11592910, 13249040, 13911492, 17389365, 18548656, 19873560, 23185820, 27822984, 34778730, 39747120, 46371640, 55645968, 69557460, 92743280, 139114920, 278229840]

約数ペア:

[(1, 278229840), (2, 139114920), (3, 92743280), (4, 69557460), (5, 55645968), (6, 46371640), (7, 39747120), (8, 34778730), (10, 27822984), (12, 23185820), (14, 19873560), (15, 18548656), (16, 17389365), (20, 13911492), (21, 13249040), (24, 11592910), (28, 9936780), (30, 9274328), (35, 7949424), (40, 6955746), (42, 6624520), (48, 5796455), (49, 5678160), (56, 4968390), (59, 4715760), (60, 4637164), (70, 3974712), (80, 3477873), (84, 3312260), (98, 2839080), (105, 2649808), (112, 2484195), (118, 2357880), (120, 2318582), (140, 1987356), (147, 1892720), (168, 1656130), (177, 1571920), (196, 1419540), (210, 1324904), (236, 1178940), (240, 1159291), (245, 1135632), (280, 993678), (294, 946360), (295, 943152), (336, 828065), (354, 785960), (392, 709770), (401, 693840), (413, 673680), (420, 662452), (472, 589470), (490, 567816), (560, 496839), (588, 473180), (590, 471576), (708, 392980), (735, 378544), (784, 354885), (802, 346920), (826, 336840), (840, 331226), (885, 314384), (944, 294735), (980, 283908), (1176, 236590), (1180, 235788), (1203, 231280), (1239, 224560), (1416, 196490), (1470, 189272), (1604, 173460), (1652, 168420), (1680, 165613), (1770, 157192), (1960, 141954), (2005, 138768), (2065, 134736), (2352, 118295), (2360, 117894), (2406, 115640), (2478, 112280), (2807, 99120), (2832, 98245), (2891, 96240), (2940, 94636), (3208, 86730), (3304, 84210), (3540, 78596), (3920, 70977), (4010, 69384), (4130, 67368), (4720, 58947), (4812, 57820), (4956, 56140), (5614, 49560), (5782, 48120), (5880, 47318), (6015, 46256), (6195, 44912), (6416, 43365), (6608, 42105), (7080, 39298), (8020, 34692), (8260, 33684), (8421, 33040), (8673, 32080), (9624, 28910), (9912, 28070), (11228, 24780), (11564, 24060), (11760, 23659), (12030, 23128), (12390, 22456), (14035, 19824), (14160, 19649), (14455, 19248), (16040, 17346), (16520, 16842)]