39902945

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{2819}}^1$

素因数の和:2992

約数の個数: 16

約数和(自身を含む): 50760000

約数和(自身を除く): 10857055

約数列:

[1, 5, 19, 95, 149, 745, 2819, 2831, 14095, 14155, 53561, 267805, 420031, 2100155, 7980589, 39902945]

約数ペア:

[(1, 39902945), (5, 7980589), (19, 2100155), (95, 420031), (149, 267805), (745, 53561), (2819, 14155), (2831, 14095)]