20647230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1321}}^1$

素因数の和:1852

約数の個数: 32

約数和(自身を含む): 49686048

約数和(自身を除く): 29038818

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 521, 1042, 1321, 1563, 2605, 2642, 3126, 3963, 5210, 6605, 7815, 7926, 13210, 15630, 19815, 39630, 688241, 1376482, 2064723, 3441205, 4129446, 6882410, 10323615, 20647230]

約数ペア:

[(1, 20647230), (2, 10323615), (3, 6882410), (5, 4129446), (6, 3441205), (10, 2064723), (15, 1376482), (30, 688241), (521, 39630), (1042, 19815), (1321, 15630), (1563, 13210), (2605, 7926), (2642, 7815), (3126, 6605), (3963, 5210)]