20492995

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{1789}}^1$

素因数の和:1902

約数の個数: 16

約数和(自身を含む): 25776000

約数和(自身を除く): 5283005

約数列:

[1, 5, 29, 79, 145, 395, 1789, 2291, 8945, 11455, 51881, 141331, 259405, 706655, 4098599, 20492995]

約数ペア:

[(1, 20492995), (5, 4098599), (29, 706655), (79, 259405), (145, 141331), (395, 51881), (1789, 11455), (2291, 8945)]