20809765730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{514711}}^1$

素因数の和:515042

約数の個数: 32

約数和(自身を含む): 40468716288

約数和(自身を除く): 19658950558

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 622, 1555, 3110, 4043, 8086, 20215, 40430, 514711, 1029422, 2573555, 5147110, 6691243, 13382486, 33456215, 66912430, 160075121, 320150242, 800375605, 1600751210, 2080976573, 4161953146, 10404882865, 20809765730]

約数ペア:

[(1, 20809765730), (2, 10404882865), (5, 4161953146), (10, 2080976573), (13, 1600751210), (26, 800375605), (65, 320150242), (130, 160075121), (311, 66912430), (622, 33456215), (1555, 13382486), (3110, 6691243), (4043, 5147110), (8086, 2573555), (20215, 1029422), (40430, 514711)]