1800702980

素因数分解:

$2^2\times 5^1\times {\mathrm{90035149}}^1$

素因数の和:90035158

約数の個数: 12

約数和(自身を含む): 3781476300

約数和(自身を除く): 1980773320

約数列:

[1, 2, 4, 5, 10, 20, 90035149, 180070298, 360140596, 450175745, 900351490, 1800702980]

約数ペア:

[(1, 1800702980), (2, 900351490), (4, 450175745), (5, 360140596), (10, 180070298), (20, 90035149)]