815001520

素因数分解:

$2^4\times 5^1\times {\mathrm{10187519}}^1$

素因数の和:10187532

約数の個数: 20

約数和(自身を含む): 1894878720

約数和(自身を除く): 1079877200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10187519, 20375038, 40750076, 50937595, 81500152, 101875190, 163000304, 203750380, 407500760, 815001520]

約数ペア:

[(1, 815001520), (2, 407500760), (4, 203750380), (5, 163000304), (8, 101875190), (10, 81500152), (16, 50937595), (20, 40750076), (40, 20375038), (80, 10187519)]