640201317

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{1063}}^1$

素因数の和:1338

約数の個数: 48

約数和(自身を含む): 1056730752

約数和(自身を除く): 416529435

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 241, 357, 723, 833, 1063, 1687, 2499, 3189, 4097, 5061, 7441, 11809, 12291, 18071, 22323, 28679, 35427, 52087, 54213, 86037, 126497, 156261, 200753, 256183, 379491, 602259, 768549, 885479, 1793281, 2656437, 4355111, 5379843, 12552967, 13065333, 30485777, 37658901, 91457331, 213400439, 640201317]

約数ペア:

[(1, 640201317), (3, 213400439), (7, 91457331), (17, 37658901), (21, 30485777), (49, 13065333), (51, 12552967), (119, 5379843), (147, 4355111), (241, 2656437), (357, 1793281), (723, 885479), (833, 768549), (1063, 602259), (1687, 379491), (2499, 256183), (3189, 200753), (4097, 156261), (5061, 126497), (7441, 86037), (11809, 54213), (12291, 52087), (18071, 35427), (22323, 28679)]