20310700

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{1031}}^1$

素因数の和:1242

約数の個数: 36

約数和(自身を含む): 44340912

約数和(自身を除く): 24030212

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 985, 1031, 1970, 2062, 3940, 4124, 4925, 5155, 9850, 10310, 19700, 20620, 25775, 51550, 103100, 203107, 406214, 812428, 1015535, 2031070, 4062140, 5077675, 10155350, 20310700]

約数ペア:

[(1, 20310700), (2, 10155350), (4, 5077675), (5, 4062140), (10, 2031070), (20, 1015535), (25, 812428), (50, 406214), (100, 203107), (197, 103100), (394, 51550), (788, 25775), (985, 20620), (1031, 19700), (1970, 10310), (2062, 9850), (3940, 5155), (4124, 4925)]