20780190723

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{719}}^1\times {\mathrm{2447}}^1$

素因数の和:3327

約数の個数: 32

約数和(自身を含む): 28877783040

約数和(自身を除く): 8097592317

約数列:

[1, 3, 31, 93, 127, 381, 719, 2157, 2447, 3937, 7341, 11811, 22289, 66867, 75857, 91313, 227571, 273939, 310769, 932307, 1759393, 2830703, 5278179, 8492109, 9633839, 28901517, 54541183, 163623549, 223442911, 670328733, 6926730241, 20780190723]

約数ペア:

[(1, 20780190723), (3, 6926730241), (31, 670328733), (93, 223442911), (127, 163623549), (381, 54541183), (719, 28901517), (2157, 9633839), (2447, 8492109), (3937, 5278179), (7341, 2830703), (11811, 1759393), (22289, 932307), (66867, 310769), (75857, 273939), (91313, 227571)]