81328765

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2579}}^1$

素因数の和:2661

約数の個数: 32

約数和(自身を含む): 120372480

約数和(自身を除く): 39043715

約数列:

[1, 5, 7, 17, 35, 53, 85, 119, 265, 371, 595, 901, 1855, 2579, 4505, 6307, 12895, 18053, 31535, 43843, 90265, 136687, 219215, 306901, 683435, 956809, 1534505, 2323679, 4784045, 11618395, 16265753, 81328765]

約数ペア:

[(1, 81328765), (5, 16265753), (7, 11618395), (17, 4784045), (35, 2323679), (53, 1534505), (85, 956809), (119, 683435), (265, 306901), (371, 219215), (595, 136687), (901, 90265), (1855, 43843), (2579, 31535), (4505, 18053), (6307, 12895)]