81573395

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 107775360

約数和(自身を除く): 26201965

約数列:

[1, 5, 17, 41, 85, 89, 205, 263, 445, 697, 1315, 1513, 3485, 3649, 4471, 7565, 10783, 18245, 22355, 23407, 53915, 62033, 117035, 183311, 310165, 397919, 916555, 959687, 1989595, 4798435, 16314679, 81573395]

約数ペア:

[(1, 81573395), (5, 16314679), (17, 4798435), (41, 1989595), (85, 959687), (89, 916555), (205, 397919), (263, 310165), (445, 183311), (697, 117035), (1315, 62033), (1513, 53915), (3485, 23407), (3649, 22355), (4471, 18245), (7565, 10783)]