278609968280

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{495289}}^1$

素因数の和:495362

約数の個数: 128

約数和(自身を含む): 748878480000

約数和(自身を除く): 470268511720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 49, 56, 70, 82, 98, 140, 164, 196, 205, 245, 280, 287, 328, 343, 392, 410, 490, 574, 686, 820, 980, 1148, 1372, 1435, 1640, 1715, 1960, 2009, 2296, 2744, 2870, 3430, 4018, 5740, 6860, 8036, 10045, 11480, 13720, 14063, 16072, 20090, 28126, 40180, 56252, 70315, 80360, 112504, 140630, 281260, 495289, 562520, 990578, 1981156, 2476445, 3467023, 3962312, 4952890, 6934046, 9905780, 13868092, 17335115, 19811560, 20306849, 24269161, 27736184, 34670230, 40613698, 48538322, 69340460, 81227396, 97076644, 101534245, 121345805, 138680920, 142147943, 162454792, 169884127, 194153288, 203068490, 242691610, 284295886, 339768254, 406136980, 485383220, 568591772, 679536508, 710739715, 812273960, 849420635, 970766440, 995035601, 1137183544, 1359073016, 1421479430, 1698841270, 1990071202, 2842958860, 3397682540, 3980142404, 4975178005, 5685917720, 6795365080, 6965249207, 7960284808, 9950356010, 13930498414, 19900712020, 27860996828, 34826246035, 39801424040, 55721993656, 69652492070, 139304984140, 278609968280]

約数ペア:

[(1, 278609968280), (2, 139304984140), (4, 69652492070), (5, 55721993656), (7, 39801424040), (8, 34826246035), (10, 27860996828), (14, 19900712020), (20, 13930498414), (28, 9950356010), (35, 7960284808), (40, 6965249207), (41, 6795365080), (49, 5685917720), (56, 4975178005), (70, 3980142404), (82, 3397682540), (98, 2842958860), (140, 1990071202), (164, 1698841270), (196, 1421479430), (205, 1359073016), (245, 1137183544), (280, 995035601), (287, 970766440), (328, 849420635), (343, 812273960), (392, 710739715), (410, 679536508), (490, 568591772), (574, 485383220), (686, 406136980), (820, 339768254), (980, 284295886), (1148, 242691610), (1372, 203068490), (1435, 194153288), (1640, 169884127), (1715, 162454792), (1960, 142147943), (2009, 138680920), (2296, 121345805), (2744, 101534245), (2870, 97076644), (3430, 81227396), (4018, 69340460), (5740, 48538322), (6860, 40613698), (8036, 34670230), (10045, 27736184), (11480, 24269161), (13720, 20306849), (14063, 19811560), (16072, 17335115), (20090, 13868092), (28126, 9905780), (40180, 6934046), (56252, 4952890), (70315, 3962312), (80360, 3467023), (112504, 2476445), (140630, 1981156), (281260, 990578), (495289, 562520)]