16858480

素因数分解:

$2^4\times 5^1\times {\mathrm{210731}}^1$

素因数の和:210744

約数の個数: 20

約数和(自身を含む): 39196152

約数和(自身を除く): 22337672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210731, 421462, 842924, 1053655, 1685848, 2107310, 3371696, 4214620, 8429240, 16858480]

約数ペア:

[(1, 16858480), (2, 8429240), (4, 4214620), (5, 3371696), (8, 2107310), (10, 1685848), (16, 1053655), (20, 842924), (40, 421462), (80, 210731)]