131557780

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{63863}}^1$

素因数の和:63975

約数の個数: 24

約数和(自身を含む): 278957952

約数和(自身を除く): 147400172

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 63863, 127726, 255452, 319315, 638630, 1277260, 6577889, 13155778, 26311556, 32889445, 65778890, 131557780]

約数ペア:

[(1, 131557780), (2, 65778890), (4, 32889445), (5, 26311556), (10, 13155778), (20, 6577889), (103, 1277260), (206, 638630), (412, 319315), (515, 255452), (1030, 127726), (2060, 63863)]