15640660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2377}}^1$

素因数の和:2440

約数の個数: 48

約数和(自身を含む): 38352384

約数和(自身を除く): 22711724

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, 2377, 3290, 4754, 6580, 9508, 11885, 16639, 23770, 33278, 47540, 66556, 83195, 111719, 166390, 223438, 332780, 446876, 558595, 782033, 1117190, 1564066, 2234380, 3128132, 3910165, 7820330, 15640660]

約数ペア:

[(1, 15640660), (2, 7820330), (4, 3910165), (5, 3128132), (7, 2234380), (10, 1564066), (14, 1117190), (20, 782033), (28, 558595), (35, 446876), (47, 332780), (70, 223438), (94, 166390), (140, 111719), (188, 83195), (235, 66556), (329, 47540), (470, 33278), (658, 23770), (940, 16639), (1316, 11885), (1645, 9508), (2377, 6580), (3290, 4754)]