38780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 93408

約数和(自身を除く): 54628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 554, 1108, 1385, 1939, 2770, 3878, 5540, 7756, 9695, 19390, 38780]

約数ペア:

[(1, 38780), (2, 19390), (4, 9695), (5, 7756), (7, 5540), (10, 3878), (14, 2770), (20, 1939), (28, 1385), (35, 1108), (70, 554), (140, 277)]