19420900

素因数分解:

$2^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{1237}}^1$

素因数の和:1408

約数の個数: 36

約数和(自身を含む): 42446068

約数和(自身を除く): 23025168

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 157, 314, 628, 785, 1237, 1570, 2474, 3140, 3925, 4948, 6185, 7850, 12370, 15700, 24740, 30925, 61850, 123700, 194209, 388418, 776836, 971045, 1942090, 3884180, 4855225, 9710450, 19420900]

約数ペア:

[(1, 19420900), (2, 9710450), (4, 4855225), (5, 3884180), (10, 1942090), (20, 971045), (25, 776836), (50, 388418), (100, 194209), (157, 123700), (314, 61850), (628, 30925), (785, 24740), (1237, 15700), (1570, 12370), (2474, 7850), (3140, 6185), (3925, 4948)]