12719140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1933}}^1$

素因数の和:1996

約数の個数: 48

約数和(自身を含む): 31191552

約数和(自身を除く): 18472412

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, 1933, 3290, 3866, 6580, 7732, 9665, 13531, 19330, 27062, 38660, 54124, 67655, 90851, 135310, 181702, 270620, 363404, 454255, 635957, 908510, 1271914, 1817020, 2543828, 3179785, 6359570, 12719140]

約数ペア:

[(1, 12719140), (2, 6359570), (4, 3179785), (5, 2543828), (7, 1817020), (10, 1271914), (14, 908510), (20, 635957), (28, 454255), (35, 363404), (47, 270620), (70, 181702), (94, 135310), (140, 90851), (188, 67655), (235, 54124), (329, 38660), (470, 27062), (658, 19330), (940, 13531), (1316, 9665), (1645, 7732), (1933, 6580), (3290, 3866)]