19538740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75149}}^1$

素因数の和:75171

約数の個数: 24

約数和(自身を含む): 44188200

約数和(自身を除く): 24649460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 75149, 150298, 300596, 375745, 751490, 976937, 1502980, 1953874, 3907748, 4884685, 9769370, 19538740]

約数ペア:

[(1, 19538740), (2, 9769370), (4, 4884685), (5, 3907748), (10, 1953874), (13, 1502980), (20, 976937), (26, 751490), (52, 375745), (65, 300596), (130, 150298), (260, 75149)]