64221100

素因数分解:

$2^2\times 5^2\times {\mathrm{642211}}^1$

素因数の和:642225

約数の個数: 18

約数和(自身を含む): 139360004

約数和(自身を除く): 75138904

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 642211, 1284422, 2568844, 3211055, 6422110, 12844220, 16055275, 32110550, 64221100]

約数ペア:

[(1, 64221100), (2, 32110550), (4, 16055275), (5, 12844220), (10, 6422110), (20, 3211055), (25, 2568844), (50, 1284422), (100, 642211)]