278701360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{1039}}^1$

素因数の和:1538

約数の個数: 80

約数和(自身を含む): 742809600

約数和(自身を除く): 464108240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 479, 560, 958, 1039, 1916, 2078, 2395, 3353, 3832, 4156, 4790, 5195, 6706, 7273, 7664, 8312, 9580, 10390, 13412, 14546, 16624, 16765, 19160, 20780, 26824, 29092, 33530, 36365, 38320, 41560, 53648, 58184, 67060, 72730, 83120, 116368, 134120, 145460, 268240, 290920, 497681, 581840, 995362, 1990724, 2488405, 3483767, 3981448, 4976810, 6967534, 7962896, 9953620, 13935068, 17418835, 19907240, 27870136, 34837670, 39814480, 55740272, 69675340, 139350680, 278701360]

約数ペア:

[(1, 278701360), (2, 139350680), (4, 69675340), (5, 55740272), (7, 39814480), (8, 34837670), (10, 27870136), (14, 19907240), (16, 17418835), (20, 13935068), (28, 9953620), (35, 7962896), (40, 6967534), (56, 4976810), (70, 3981448), (80, 3483767), (112, 2488405), (140, 1990724), (280, 995362), (479, 581840), (560, 497681), (958, 290920), (1039, 268240), (1916, 145460), (2078, 134120), (2395, 116368), (3353, 83120), (3832, 72730), (4156, 67060), (4790, 58184), (5195, 53648), (6706, 41560), (7273, 38320), (7664, 36365), (8312, 33530), (9580, 29092), (10390, 26824), (13412, 20780), (14546, 19160), (16624, 16765)]