20507110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157747}}^1$

素因数の和:157767

約数の個数: 16

約数和(自身を含む): 39752496

約数和(自身を除く): 19245386

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157747, 315494, 788735, 1577470, 2050711, 4101422, 10253555, 20507110]

約数ペア:

[(1, 20507110), (2, 10253555), (5, 4101422), (10, 2050711), (13, 1577470), (26, 788735), (65, 315494), (130, 157747)]