315200

素因数分解:

$2^6\times 5^2\times {\mathrm{197}}^1$

素因数の和:219

約数の個数: 42

約数和(自身を含む): 779526

約数和(自身を除く): 464326

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 197, 200, 320, 394, 400, 788, 800, 985, 1576, 1600, 1970, 3152, 3940, 4925, 6304, 7880, 9850, 12608, 15760, 19700, 31520, 39400, 63040, 78800, 157600, 315200]

約数ペア:

[(1, 315200), (2, 157600), (4, 78800), (5, 63040), (8, 39400), (10, 31520), (16, 19700), (20, 15760), (25, 12608), (32, 9850), (40, 7880), (50, 6304), (64, 4925), (80, 3940), (100, 3152), (160, 1970), (197, 1600), (200, 1576), (320, 985), (394, 800), (400, 788)]