81000310

素因数分解:

$2^1\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{7949}}^1$

素因数の和:8975

約数の個数: 16

約数和(自身を含む): 145962000

約数和(自身を除く): 64961690

約数列:

[1, 2, 5, 10, 1019, 2038, 5095, 7949, 10190, 15898, 39745, 79490, 8100031, 16200062, 40500155, 81000310]

約数ペア:

[(1, 81000310), (2, 40500155), (5, 16200062), (10, 8100031), (1019, 79490), (2038, 39745), (5095, 15898), (7949, 10190)]