81572806

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{757}}^1$

素因数の和:988

約数の個数: 32

約数和(自身を含む): 144080640

約数和(自身を除く): 62507834

約数列:

[1, 2, 7, 14, 43, 86, 179, 301, 358, 602, 757, 1253, 1514, 2506, 5299, 7697, 10598, 15394, 32551, 53879, 65102, 107758, 135503, 227857, 271006, 455714, 948521, 1897042, 5826629, 11653258, 40786403, 81572806]

約数ペア:

[(1, 81572806), (2, 40786403), (7, 11653258), (14, 5826629), (43, 1897042), (86, 948521), (179, 455714), (301, 271006), (358, 227857), (602, 135503), (757, 107758), (1253, 65102), (1514, 53879), (2506, 32551), (5299, 15394), (7697, 10598)]