12502540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 27377280

約数和(自身を除く): 14874740

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 193, 205, 316, 386, 395, 410, 772, 790, 820, 965, 1580, 1930, 3239, 3860, 6478, 7913, 12956, 15247, 15826, 16195, 30494, 31652, 32390, 39565, 60988, 64780, 76235, 79130, 152470, 158260, 304940, 625127, 1250254, 2500508, 3125635, 6251270, 12502540]

約数ペア:

[(1, 12502540), (2, 6251270), (4, 3125635), (5, 2500508), (10, 1250254), (20, 625127), (41, 304940), (79, 158260), (82, 152470), (158, 79130), (164, 76235), (193, 64780), (205, 60988), (316, 39565), (386, 32390), (395, 31652), (410, 30494), (772, 16195), (790, 15826), (820, 15247), (965, 12956), (1580, 7913), (1930, 6478), (3239, 3860)]