39889780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{284927}}^1$

素因数の和:284943

約数の個数: 24

約数和(自身を含む): 95735808

約数和(自身を除く): 55846028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 284927, 569854, 1139708, 1424635, 1994489, 2849270, 3988978, 5698540, 7977956, 9972445, 19944890, 39889780]

約数ペア:

[(1, 39889780), (2, 19944890), (4, 9972445), (5, 7977956), (7, 5698540), (10, 3988978), (14, 2849270), (20, 1994489), (28, 1424635), (35, 1139708), (70, 569854), (140, 284927)]