42721520

素因数分解:

$2^4\times 5^1\times {\mathrm{534019}}^1$

素因数の和:534032

約数の個数: 20

約数和(自身を含む): 99327720

約数和(自身を除く): 56606200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 534019, 1068038, 2136076, 2670095, 4272152, 5340190, 8544304, 10680380, 21360760, 42721520]

約数ペア:

[(1, 42721520), (2, 21360760), (4, 10680380), (5, 8544304), (8, 5340190), (10, 4272152), (16, 2670095), (20, 2136076), (40, 1068038), (80, 534019)]