28198480

素因数分解:

$2^4\times 5^1\times {\mathrm{352481}}^1$

素因数の和:352494

約数の個数: 20

約数和(自身を含む): 65561652

約数和(自身を除く): 37363172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 352481, 704962, 1409924, 1762405, 2819848, 3524810, 5639696, 7049620, 14099240, 28198480]

約数ペア:

[(1, 28198480), (2, 14099240), (4, 7049620), (5, 5639696), (8, 3524810), (10, 2819848), (16, 1762405), (20, 1409924), (40, 704962), (80, 352481)]