10820915

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1523}}^1$

素因数の和:1571

約数の個数: 24

約数和(自身を含む): 15636240

約数和(自身を除く): 4815325

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 1015, 1421, 1523, 7105, 7615, 10661, 44167, 53305, 74627, 220835, 309169, 373135, 1545845, 2164183, 10820915]

約数ペア:

[(1, 10820915), (5, 2164183), (7, 1545845), (29, 373135), (35, 309169), (49, 220835), (145, 74627), (203, 53305), (245, 44167), (1015, 10661), (1421, 7615), (1523, 7105)]