72465520

素因数分解:

$2^4\times 5^1\times {\mathrm{905819}}^1$

素因数の和:905832

約数の個数: 20

約数和(自身を含む): 168482520

約数和(自身を除く): 96017000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 905819, 1811638, 3623276, 4529095, 7246552, 9058190, 14493104, 18116380, 36232760, 72465520]

約数ペア:

[(1, 72465520), (2, 36232760), (4, 18116380), (5, 14493104), (8, 9058190), (10, 7246552), (16, 4529095), (20, 3623276), (40, 1811638), (80, 905819)]