20405720155

素因数分解:

$5^1\times {\mathrm{107}}^1\times {\mathrm{4001}}^1\times {\mathrm{9533}}^1$

素因数の和:13646

約数の個数: 16

約数和(自身を含む): 24724484064

約数和(自身を除く): 4318763909

約数列:

[1, 5, 107, 535, 4001, 9533, 20005, 47665, 428107, 1020031, 2140535, 5100155, 38141533, 190707665, 4081144031, 20405720155]

約数ペア:

[(1, 20405720155), (5, 4081144031), (107, 190707665), (535, 38141533), (4001, 5100155), (9533, 2140535), (20005, 1020031), (47665, 428107)]