280016640

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:359

約数の個数: 216

約数和(自身を含む): 982101120

約数和(自身を除く): 702084480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 109, 120, 128, 144, 160, 180, 192, 218, 223, 240, 256, 288, 320, 327, 360, 384, 436, 446, 480, 545, 576, 640, 654, 669, 720, 768, 872, 892, 960, 981, 1090, 1115, 1152, 1280, 1308, 1338, 1440, 1635, 1744, 1784, 1920, 1962, 2007, 2180, 2230, 2304, 2616, 2676, 2880, 3270, 3345, 3488, 3568, 3840, 3924, 4014, 4360, 4460, 4905, 5232, 5352, 5760, 6540, 6690, 6976, 7136, 7848, 8028, 8720, 8920, 9810, 10035, 10464, 10704, 11520, 13080, 13380, 13952, 14272, 15696, 16056, 17440, 17840, 19620, 20070, 20928, 21408, 24307, 26160, 26760, 27904, 28544, 31392, 32112, 34880, 35680, 39240, 40140, 41856, 42816, 48614, 52320, 53520, 57088, 62784, 64224, 69760, 71360, 72921, 78480, 80280, 83712, 85632, 97228, 104640, 107040, 121535, 125568, 128448, 139520, 142720, 145842, 156960, 160560, 171264, 194456, 209280, 214080, 218763, 243070, 251136, 256896, 285440, 291684, 313920, 321120, 364605, 388912, 418560, 428160, 437526, 486140, 513792, 583368, 627840, 642240, 729210, 777824, 856320, 875052, 972280, 1093815, 1166736, 1255680, 1284480, 1458420, 1555648, 1750104, 1944560, 2187630, 2333472, 2568960, 2916840, 3111296, 3500208, 3889120, 4375260, 4666944, 5833680, 6222592, 7000416, 7778240, 8750520, 9333888, 11667360, 14000832, 15556480, 17501040, 18667776, 23334720, 28001664, 31112960, 35002080, 46669440, 56003328, 70004160, 93338880, 140008320, 280016640]

約数ペア:

[(1, 280016640), (2, 140008320), (3, 93338880), (4, 70004160), (5, 56003328), (6, 46669440), (8, 35002080), (9, 31112960), (10, 28001664), (12, 23334720), (15, 18667776), (16, 17501040), (18, 15556480), (20, 14000832), (24, 11667360), (30, 9333888), (32, 8750520), (36, 7778240), (40, 7000416), (45, 6222592), (48, 5833680), (60, 4666944), (64, 4375260), (72, 3889120), (80, 3500208), (90, 3111296), (96, 2916840), (109, 2568960), (120, 2333472), (128, 2187630), (144, 1944560), (160, 1750104), (180, 1555648), (192, 1458420), (218, 1284480), (223, 1255680), (240, 1166736), (256, 1093815), (288, 972280), (320, 875052), (327, 856320), (360, 777824), (384, 729210), (436, 642240), (446, 627840), (480, 583368), (545, 513792), (576, 486140), (640, 437526), (654, 428160), (669, 418560), (720, 388912), (768, 364605), (872, 321120), (892, 313920), (960, 291684), (981, 285440), (1090, 256896), (1115, 251136), (1152, 243070), (1280, 218763), (1308, 214080), (1338, 209280), (1440, 194456), (1635, 171264), (1744, 160560), (1784, 156960), (1920, 145842), (1962, 142720), (2007, 139520), (2180, 128448), (2230, 125568), (2304, 121535), (2616, 107040), (2676, 104640), (2880, 97228), (3270, 85632), (3345, 83712), (3488, 80280), (3568, 78480), (3840, 72921), (3924, 71360), (4014, 69760), (4360, 64224), (4460, 62784), (4905, 57088), (5232, 53520), (5352, 52320), (5760, 48614), (6540, 42816), (6690, 41856), (6976, 40140), (7136, 39240), (7848, 35680), (8028, 34880), (8720, 32112), (8920, 31392), (9810, 28544), (10035, 27904), (10464, 26760), (10704, 26160), (11520, 24307), (13080, 21408), (13380, 20928), (13952, 20070), (14272, 19620), (15696, 17840), (16056, 17440)]