51310220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197347}}^1$

素因数の和:197369

約数の個数: 24

約数和(自身を含む): 116040624

約数和(自身を除く): 64730404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 197347, 394694, 789388, 986735, 1973470, 2565511, 3946940, 5131022, 10262044, 12827555, 25655110, 51310220]

約数ペア:

[(1, 51310220), (2, 25655110), (4, 12827555), (5, 10262044), (10, 5131022), (13, 3946940), (20, 2565511), (26, 1973470), (52, 986735), (65, 789388), (130, 394694), (260, 197347)]