28265215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3923}}^1$

素因数の和:4070

約数の個数: 16

約数和(自身を含む): 37293696

約数和(自身を除く): 9028481

約数列:

[1, 5, 11, 55, 131, 655, 1441, 3923, 7205, 19615, 43153, 215765, 513913, 2569565, 5653043, 28265215]

約数ペア:

[(1, 28265215), (5, 5653043), (11, 2569565), (55, 513913), (131, 215765), (655, 43153), (1441, 19615), (3923, 7205)]