402002

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:241

約数の個数: 16

約数和(自身を含む): 648000

約数和(自身を除く): 245998

約数列:

[1, 2, 19, 38, 71, 142, 149, 298, 1349, 2698, 2831, 5662, 10579, 21158, 201001, 402002]

約数ペア:

[(1, 402002), (2, 201001), (19, 21158), (38, 10579), (71, 5662), (142, 2831), (149, 2698), (298, 1349)]