40289912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{387403}}^1$

素因数の和:387422

約数の個数: 16

約数和(自身を含む): 81354840

約数和(自身を除く): 41064928

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 387403, 774806, 1549612, 3099224, 5036239, 10072478, 20144956, 40289912]

約数ペア:

[(1, 40289912), (2, 20144956), (4, 10072478), (8, 5036239), (13, 3099224), (26, 1549612), (52, 774806), (104, 387403)]