4039495

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:546

約数の個数: 16

約数和(自身を含む): 5165280

約数和(自身を除く): 1125785

約数列:

[1, 5, 19, 95, 101, 421, 505, 1919, 2105, 7999, 9595, 39995, 42521, 212605, 807899, 4039495]

約数ペア:

[(1, 4039495), (5, 807899), (19, 212605), (95, 42521), (101, 39995), (421, 9595), (505, 7999), (1919, 2105)]