18996460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2887}}^1$

素因数の和:2950

約数の個数: 48

約数和(自身を含む): 46577664

約数和(自身を除く): 27581204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 2887, 3290, 5774, 6580, 11548, 14435, 20209, 28870, 40418, 57740, 80836, 101045, 135689, 202090, 271378, 404180, 542756, 678445, 949823, 1356890, 1899646, 2713780, 3799292, 4749115, 9498230, 18996460]

約数ペア:

[(1, 18996460), (2, 9498230), (4, 4749115), (5, 3799292), (7, 2713780), (10, 1899646), (14, 1356890), (20, 949823), (28, 678445), (35, 542756), (47, 404180), (70, 271378), (94, 202090), (140, 135689), (188, 101045), (235, 80836), (329, 57740), (470, 40418), (658, 28870), (940, 20209), (1316, 14435), (1645, 11548), (2887, 6580), (3290, 5774)]