78389780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{2129}}^1$

素因数の和:2408

約数の個数: 48

約数和(自身を含む): 188939520

約数和(自身を除く): 110549740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 526, 1052, 1315, 1841, 2129, 2630, 3682, 4258, 5260, 7364, 8516, 9205, 10645, 14903, 18410, 21290, 29806, 36820, 42580, 59612, 74515, 149030, 298060, 559927, 1119854, 2239708, 2799635, 3919489, 5599270, 7838978, 11198540, 15677956, 19597445, 39194890, 78389780]

約数ペア:

[(1, 78389780), (2, 39194890), (4, 19597445), (5, 15677956), (7, 11198540), (10, 7838978), (14, 5599270), (20, 3919489), (28, 2799635), (35, 2239708), (70, 1119854), (140, 559927), (263, 298060), (526, 149030), (1052, 74515), (1315, 59612), (1841, 42580), (2129, 36820), (2630, 29806), (3682, 21290), (4258, 18410), (5260, 14903), (7364, 10645), (8516, 9205)]