64466140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{68581}}^1$

素因数の和:68637

約数の個数: 24

約数和(自身を含む): 138261312

約数和(自身を除く): 73795172

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 68581, 137162, 274324, 342905, 685810, 1371620, 3223307, 6446614, 12893228, 16116535, 32233070, 64466140]

約数ペア:

[(1, 64466140), (2, 32233070), (4, 16116535), (5, 12893228), (10, 6446614), (20, 3223307), (47, 1371620), (94, 685810), (188, 342905), (235, 274324), (470, 137162), (940, 68581)]