20018995

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{859}}^1$

素因数の和:1002

約数の個数: 16

約数和(自身を含む): 24768000

約数和(自身を除く): 4749005

約数列:

[1, 5, 59, 79, 295, 395, 859, 4295, 4661, 23305, 50681, 67861, 253405, 339305, 4003799, 20018995]

約数ペア:

[(1, 20018995), (5, 4003799), (59, 339305), (79, 253405), (295, 67861), (395, 50681), (859, 23305), (4295, 4661)]