220900

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^2$

素因数の和:108

約数の個数: 27

約数和(自身を含む): 489769

約数和(自身を除く): 268869

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 188, 235, 470, 940, 1175, 2209, 2350, 4418, 4700, 8836, 11045, 22090, 44180, 55225, 110450, 220900]

約数ペア:

[(1, 220900), (2, 110450), (4, 55225), (5, 44180), (10, 22090), (20, 11045), (25, 8836), (47, 4700), (50, 4418), (94, 2350), (100, 2209), (188, 1175), (235, 940)]