8429240

素因数分解:

$2^3\times 5^1\times {\mathrm{210731}}^1$

素因数の和:210742

約数の個数: 16

約数和(自身を含む): 18965880

約数和(自身を除く): 10536640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 210731, 421462, 842924, 1053655, 1685848, 2107310, 4214620, 8429240]

約数ペア:

[(1, 8429240), (2, 4214620), (4, 2107310), (5, 1685848), (8, 1053655), (10, 842924), (20, 421462), (40, 210731)]