20307245

素因数分解:

$5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{5323}}^1$

素因数の和:5444

約数の個数: 16

約数和(自身を含む): 28110720

約数和(自身を除く): 7803475

約数列:

[1, 5, 7, 35, 109, 545, 763, 3815, 5323, 26615, 37261, 186305, 580207, 2901035, 4061449, 20307245]

約数ペア:

[(1, 20307245), (5, 4061449), (7, 2901035), (35, 580207), (109, 186305), (545, 37261), (763, 26615), (3815, 5323)]