20475702910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157505407}}^1$

素因数の和:157505427

約数の個数: 16

約数和(自身を含む): 39691362816

約数和(自身を除く): 19215659906

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157505407, 315010814, 787527035, 1575054070, 2047570291, 4095140582, 10237851455, 20475702910]

約数ペア:

[(1, 20475702910), (2, 10237851455), (5, 4095140582), (10, 2047570291), (13, 1575054070), (26, 787527035), (65, 315010814), (130, 157505407)]