20500490

素因数分解:

$2^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{7621}}^1$

素因数の和:7897

約数の個数: 16

約数和(自身を含む): 37042920

約数和(自身を除く): 16542430

約数列:

[1, 2, 5, 10, 269, 538, 1345, 2690, 7621, 15242, 38105, 76210, 2050049, 4100098, 10250245, 20500490]

約数ペア:

[(1, 20500490), (2, 10250245), (5, 4100098), (10, 2050049), (269, 76210), (538, 38105), (1345, 15242), (2690, 7621)]