20925057968

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8330039}}^1$

素因数の和:8330204

約数の個数: 20

約数和(自身を含む): 40800535920

約数和(自身を除く): 19875477952

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8330039, 16660078, 33320156, 66640312, 133280624, 1307816123, 2615632246, 5231264492, 10462528984, 20925057968]

約数ペア:

[(1, 20925057968), (2, 10462528984), (4, 5231264492), (8, 2615632246), (16, 1307816123), (157, 133280624), (314, 66640312), (628, 33320156), (1256, 16660078), (2512, 8330039)]