20022888910

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{128657}}^1$

素因数の和:128940

約数の個数: 32

約数和(自身を含む): 36682968960

約数和(自身を除く): 16660080050

約数列:

[1, 2, 5, 10, 79, 158, 197, 394, 395, 790, 985, 1970, 15563, 31126, 77815, 128657, 155630, 257314, 643285, 1286570, 10163903, 20327806, 25345429, 50690858, 50819515, 101639030, 126727145, 253454290, 2002288891, 4004577782, 10011444455, 20022888910]

約数ペア:

[(1, 20022888910), (2, 10011444455), (5, 4004577782), (10, 2002288891), (79, 253454290), (158, 126727145), (197, 101639030), (394, 50819515), (395, 50690858), (790, 25345429), (985, 20327806), (1970, 10163903), (15563, 1286570), (31126, 643285), (77815, 257314), (128657, 155630)]