81345212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{6491}}^1$

素因数の和:6749

約数の個数: 24

約数和(自身を含む): 153964272

約数和(自身を除く): 72619060

約数列:

[1, 2, 4, 13, 26, 52, 241, 482, 964, 3133, 6266, 6491, 12532, 12982, 25964, 84383, 168766, 337532, 1564331, 3128662, 6257324, 20336303, 40672606, 81345212]

約数ペア:

[(1, 81345212), (2, 40672606), (4, 20336303), (13, 6257324), (26, 3128662), (52, 1564331), (241, 337532), (482, 168766), (964, 84383), (3133, 25964), (6266, 12982), (6491, 12532)]