394403390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1272269}}^1$

素因数の和:1272307

約数の個数: 16

約数和(自身を含む): 732827520

約数和(自身を除く): 338424130

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 1272269, 2544538, 6361345, 12722690, 39440339, 78880678, 197201695, 394403390]

約数ペア:

[(1, 394403390), (2, 197201695), (5, 78880678), (10, 39440339), (31, 12722690), (62, 6361345), (155, 2544538), (310, 1272269)]