2172220

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{347}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 4589424

約数和(自身を除く): 2417204

約数列:

[1, 2, 4, 5, 10, 20, 313, 347, 626, 694, 1252, 1388, 1565, 1735, 3130, 3470, 6260, 6940, 108611, 217222, 434444, 543055, 1086110, 2172220]

約数ペア:

[(1, 2172220), (2, 1086110), (4, 543055), (5, 434444), (10, 217222), (20, 108611), (313, 6940), (347, 6260), (626, 3470), (694, 3130), (1252, 1735), (1388, 1565)]