199460740

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{25121}}^1$

素因数の和:25527

約数の個数: 24

約数和(自身を含む): 419939352

約数和(自身を除く): 220478612

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 7940, 25121, 50242, 100484, 125605, 251210, 502420, 9973037, 19946074, 39892148, 49865185, 99730370, 199460740]

約数ペア:

[(1, 199460740), (2, 99730370), (4, 49865185), (5, 39892148), (10, 19946074), (20, 9973037), (397, 502420), (794, 251210), (1588, 125605), (1985, 100484), (3970, 50242), (7940, 25121)]