28216285

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{2251}}^1$

素因数の和:2388

約数の個数: 16

約数和(自身を含む): 35671680

約数和(自身を除く): 7455395

約数列:

[1, 5, 23, 109, 115, 545, 2251, 2507, 11255, 12535, 51773, 245359, 258865, 1226795, 5643257, 28216285]

約数ペア:

[(1, 28216285), (5, 5643257), (23, 1226795), (109, 258865), (115, 245359), (545, 51773), (2251, 12535), (2507, 11255)]