20681570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{22727}}^1$

素因数の和:22754

約数の個数: 32

約数和(自身を含む): 45819648

約数和(自身を除く): 25138078

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 22727, 45454, 113635, 159089, 227270, 295451, 318178, 590902, 795445, 1477255, 1590890, 2068157, 2954510, 4136314, 10340785, 20681570]

約数ペア:

[(1, 20681570), (2, 10340785), (5, 4136314), (7, 2954510), (10, 2068157), (13, 1590890), (14, 1477255), (26, 795445), (35, 590902), (65, 318178), (70, 295451), (91, 227270), (130, 159089), (182, 113635), (455, 45454), (910, 22727)]