201221500

素因数分解:

$2^2\times 5^3\times {\mathrm{402443}}^1$

素因数の和:402462

約数の個数: 24

約数和(自身を含む): 439468848

約数和(自身を除く): 238247348

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 402443, 804886, 1609772, 2012215, 4024430, 8048860, 10061075, 20122150, 40244300, 50305375, 100610750, 201221500]

約数ペア:

[(1, 201221500), (2, 100610750), (4, 50305375), (5, 40244300), (10, 20122150), (20, 10061075), (25, 8048860), (50, 4024430), (100, 2012215), (125, 1609772), (250, 804886), (500, 402443)]