20415815

素因数分解:

$5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{1523}}^1$

素因数の和:1918

約数の個数: 16

約数和(自身を含む): 28090368

約数和(自身を除く): 7674553

約数列:

[1, 5, 7, 35, 383, 1523, 1915, 2681, 7615, 10661, 13405, 53305, 583309, 2916545, 4083163, 20415815]

約数ペア:

[(1, 20415815), (5, 4083163), (7, 2916545), (35, 583309), (383, 53305), (1523, 13405), (1915, 10661), (2681, 7615)]