140673820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{21379}}^1$

素因数の和:21442

約数の個数: 48

約数和(自身を含む): 344816640

約数和(自身を除く): 204142820

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, 3290, 6580, 21379, 42758, 85516, 106895, 149653, 213790, 299306, 427580, 598612, 748265, 1004813, 1496530, 2009626, 2993060, 4019252, 5024065, 7033691, 10048130, 14067382, 20096260, 28134764, 35168455, 70336910, 140673820]

約数ペア:

[(1, 140673820), (2, 70336910), (4, 35168455), (5, 28134764), (7, 20096260), (10, 14067382), (14, 10048130), (20, 7033691), (28, 5024065), (35, 4019252), (47, 2993060), (70, 2009626), (94, 1496530), (140, 1004813), (188, 748265), (235, 598612), (329, 427580), (470, 299306), (658, 213790), (940, 149653), (1316, 106895), (1645, 85516), (3290, 42758), (6580, 21379)]