1687660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6491}}^1$

素因数の和:6513

約数の個数: 24

約数和(自身を含む): 3817296

約数和(自身を除く): 2129636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 6491, 12982, 25964, 32455, 64910, 84383, 129820, 168766, 337532, 421915, 843830, 1687660]

約数ペア:

[(1, 1687660), (2, 843830), (4, 421915), (5, 337532), (10, 168766), (13, 129820), (20, 84383), (26, 64910), (52, 32455), (65, 25964), (130, 12982), (260, 6491)]