20996858110

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72402959}}^1$

素因数の和:72402995

約数の個数: 16

約数和(自身を含む): 39097598400

約数和(自身を除く): 18100740290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72402959, 144805918, 362014795, 724029590, 2099685811, 4199371622, 10498429055, 20996858110]

約数ペア:

[(1, 20996858110), (2, 10498429055), (5, 4199371622), (10, 2099685811), (29, 724029590), (58, 362014795), (145, 144805918), (290, 72402959)]