280405440

素因数分解:

$2^6\times 3^2\times 5^1\times 7^2\times {\mathrm{1987}}^1$

素因数の和:2024

約数の個数: 252

約数和(自身を含む): 1122508296

約数和(自身を除く): 842102856

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, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 320, 336, 360, 392, 420, 441, 448, 480, 490, 504, 560, 576, 588, 630, 672, 720, 735, 784, 840, 882, 960, 980, 1008, 1120, 1176, 1260, 1344, 1440, 1470, 1568, 1680, 1764, 1960, 1987, 2016, 2205, 2240, 2352, 2520, 2880, 2940, 3136, 3360, 3528, 3920, 3974, 4032, 4410, 4704, 5040, 5880, 5961, 6720, 7056, 7840, 7948, 8820, 9408, 9935, 10080, 11760, 11922, 13909, 14112, 15680, 15896, 17640, 17883, 19870, 20160, 23520, 23844, 27818, 28224, 29805, 31792, 35280, 35766, 39740, 41727, 47040, 47688, 55636, 59610, 63584, 69545, 70560, 71532, 79480, 83454, 89415, 95376, 97363, 111272, 119220, 125181, 127168, 139090, 141120, 143064, 158960, 166908, 178830, 190752, 194726, 208635, 222544, 238440, 250362, 278180, 286128, 292089, 317920, 333816, 357660, 381504, 389452, 417270, 445088, 476880, 486815, 500724, 556360, 572256, 584178, 625905, 635840, 667632, 715320, 778904, 834540, 876267, 890176, 953760, 973630, 1001448, 1112720, 1144512, 1168356, 1251810, 1335264, 1430640, 1460445, 1557808, 1669080, 1752534, 1907520, 1947260, 2002896, 2225440, 2336712, 2503620, 2670528, 2861280, 2920890, 3115616, 3338160, 3505068, 3894520, 4005792, 4381335, 4450880, 4673424, 5007240, 5722560, 5841780, 6231232, 6676320, 7010136, 7789040, 8011584, 8762670, 9346848, 10014480, 11683560, 13352640, 14020272, 15578080, 17525340, 18693696, 20028960, 23367120, 28040544, 31156160, 35050680, 40057920, 46734240, 56081088, 70101360, 93468480, 140202720, 280405440]

約数ペア:

[(1, 280405440), (2, 140202720), (3, 93468480), (4, 70101360), (5, 56081088), (6, 46734240), (7, 40057920), (8, 35050680), (9, 31156160), (10, 28040544), (12, 23367120), (14, 20028960), (15, 18693696), (16, 17525340), (18, 15578080), (20, 14020272), (21, 13352640), (24, 11683560), (28, 10014480), (30, 9346848), (32, 8762670), (35, 8011584), (36, 7789040), (40, 7010136), (42, 6676320), (45, 6231232), (48, 5841780), (49, 5722560), (56, 5007240), (60, 4673424), (63, 4450880), (64, 4381335), (70, 4005792), (72, 3894520), (80, 3505068), (84, 3338160), (90, 3115616), (96, 2920890), (98, 2861280), (105, 2670528), (112, 2503620), (120, 2336712), (126, 2225440), (140, 2002896), (144, 1947260), (147, 1907520), (160, 1752534), (168, 1669080), (180, 1557808), (192, 1460445), (196, 1430640), (210, 1335264), (224, 1251810), (240, 1168356), (245, 1144512), (252, 1112720), (280, 1001448), (288, 973630), (294, 953760), (315, 890176), (320, 876267), (336, 834540), (360, 778904), (392, 715320), (420, 667632), (441, 635840), (448, 625905), (480, 584178), (490, 572256), (504, 556360), (560, 500724), (576, 486815), (588, 476880), (630, 445088), (672, 417270), (720, 389452), (735, 381504), (784, 357660), (840, 333816), (882, 317920), (960, 292089), (980, 286128), (1008, 278180), (1120, 250362), (1176, 238440), (1260, 222544), (1344, 208635), (1440, 194726), (1470, 190752), (1568, 178830), (1680, 166908), (1764, 158960), (1960, 143064), (1987, 141120), (2016, 139090), (2205, 127168), (2240, 125181), (2352, 119220), (2520, 111272), (2880, 97363), (2940, 95376), (3136, 89415), (3360, 83454), (3528, 79480), (3920, 71532), (3974, 70560), (4032, 69545), (4410, 63584), (4704, 59610), (5040, 55636), (5880, 47688), (5961, 47040), (6720, 41727), (7056, 39740), (7840, 35766), (7948, 35280), (8820, 31792), (9408, 29805), (9935, 28224), (10080, 27818), (11760, 23844), (11922, 23520), (13909, 20160), (14112, 19870), (15680, 17883), (15896, 17640)]