18131540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1933}}^1$

素因数の和:2016

約数の個数: 48

約数和(自身を含む): 44188032

約数和(自身を除く): 26056492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 1933, 2345, 3866, 4690, 7732, 9380, 9665, 13531, 19330, 27062, 38660, 54124, 67655, 129511, 135310, 259022, 270620, 518044, 647555, 906577, 1295110, 1813154, 2590220, 3626308, 4532885, 9065770, 18131540]

約数ペア:

[(1, 18131540), (2, 9065770), (4, 4532885), (5, 3626308), (7, 2590220), (10, 1813154), (14, 1295110), (20, 906577), (28, 647555), (35, 518044), (67, 270620), (70, 259022), (134, 135310), (140, 129511), (268, 67655), (335, 54124), (469, 38660), (670, 27062), (938, 19330), (1340, 13531), (1876, 9665), (1933, 9380), (2345, 7732), (3866, 4690)]