20148405

素因数分解:

$3^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2089}}^1$

素因数の和:2740

約数の個数: 16

約数和(自身を含む): 32303040

約数和(自身を除く): 12154635

約数列:

[1, 3, 5, 15, 643, 1929, 2089, 3215, 6267, 9645, 10445, 31335, 1343227, 4029681, 6716135, 20148405]

約数ペア:

[(1, 20148405), (3, 6716135), (5, 4029681), (15, 1343227), (643, 31335), (1929, 10445), (2089, 9645), (3215, 6267)]