23219920

素因数分解:

$2^4\times 5^1\times {\mathrm{290249}}^1$

素因数の和:290262

約数の個数: 20

約数和(自身を含む): 53986500

約数和(自身を除く): 30766580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 290249, 580498, 1160996, 1451245, 2321992, 2902490, 4643984, 5804980, 11609960, 23219920]

約数ペア:

[(1, 23219920), (2, 11609960), (4, 5804980), (5, 4643984), (8, 2902490), (10, 2321992), (16, 1451245), (20, 1160996), (40, 580498), (80, 290249)]