19453360

素因数分解:

$2^4\times 5^1\times {\mathrm{243167}}^1$

素因数の和:243180

約数の個数: 20

約数和(自身を含む): 45229248

約数和(自身を除く): 25775888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 243167, 486334, 972668, 1215835, 1945336, 2431670, 3890672, 4863340, 9726680, 19453360]

約数ペア:

[(1, 19453360), (2, 9726680), (4, 4863340), (5, 3890672), (8, 2431670), (10, 1945336), (16, 1215835), (20, 972668), (40, 486334), (80, 243167)]