80668840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4723}}^1$

素因数の和:4802

約数の個数: 64

約数和(自身を含む): 210879360

約数和(自身を除く): 130210520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1708, 2135, 2440, 3416, 4270, 4723, 8540, 9446, 17080, 18892, 23615, 33061, 37784, 47230, 66122, 94460, 132244, 165305, 188920, 264488, 288103, 330610, 576206, 661220, 1152412, 1322440, 1440515, 2016721, 2304824, 2881030, 4033442, 5762060, 8066884, 10083605, 11524120, 16133768, 20167210, 40334420, 80668840]

約数ペア:

[(1, 80668840), (2, 40334420), (4, 20167210), (5, 16133768), (7, 11524120), (8, 10083605), (10, 8066884), (14, 5762060), (20, 4033442), (28, 2881030), (35, 2304824), (40, 2016721), (56, 1440515), (61, 1322440), (70, 1152412), (122, 661220), (140, 576206), (244, 330610), (280, 288103), (305, 264488), (427, 188920), (488, 165305), (610, 132244), (854, 94460), (1220, 66122), (1708, 47230), (2135, 37784), (2440, 33061), (3416, 23615), (4270, 18892), (4723, 17080), (8540, 9446)]