66468740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{255649}}^1$

素因数の和:255671

約数の個数: 24

約数和(自身を含む): 150322200

約数和(自身を除く): 83853460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 255649, 511298, 1022596, 1278245, 2556490, 3323437, 5112980, 6646874, 13293748, 16617185, 33234370, 66468740]

約数ペア:

[(1, 66468740), (2, 33234370), (4, 16617185), (5, 13293748), (10, 6646874), (13, 5112980), (20, 3323437), (26, 2556490), (52, 1278245), (65, 1022596), (130, 511298), (260, 255649)]