20613490

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71081}}^1$

素因数の和:71117

約数の個数: 16

約数和(自身を含む): 38384280

約数和(自身を除く): 17770790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 71081, 142162, 355405, 710810, 2061349, 4122698, 10306745, 20613490]

約数ペア:

[(1, 20613490), (2, 10306745), (5, 4122698), (10, 2061349), (29, 710810), (58, 355405), (145, 142162), (290, 71081)]