394402180

素因数分解:

$2^2\times 5^1\times {\mathrm{2339}}^1\times {\mathrm{8431}}^1$

素因数の和:10779

約数の個数: 24

約数和(自身を含む): 828696960

約数和(自身を除く): 434294780

約数列:

[1, 2, 4, 5, 10, 20, 2339, 4678, 8431, 9356, 11695, 16862, 23390, 33724, 42155, 46780, 84310, 168620, 19720109, 39440218, 78880436, 98600545, 197201090, 394402180]

約数ペア:

[(1, 394402180), (2, 197201090), (4, 98600545), (5, 78880436), (10, 39440218), (20, 19720109), (2339, 168620), (4678, 84310), (8431, 46780), (9356, 42155), (11695, 33724), (16862, 23390)]