199020740

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{28513}}^1$

素因数の和:28871

約数の個数: 24

約数和(自身を含む): 419155800

約数和(自身を除く): 220135060

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 28513, 57026, 114052, 142565, 285130, 570260, 9951037, 19902074, 39804148, 49755185, 99510370, 199020740]

約数ペア:

[(1, 199020740), (2, 99510370), (4, 49755185), (5, 39804148), (10, 19902074), (20, 9951037), (349, 570260), (698, 285130), (1396, 142565), (1745, 114052), (3490, 57026), (6980, 28513)]