128412855

素因数分解:

$3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{11369}}^1$

素因数の和:11631

約数の個数: 24

約数和(自身を含む): 223488720

約数和(自身を除く): 95075865

約数列:

[1, 3, 5, 9, 15, 45, 251, 753, 1255, 2259, 3765, 11295, 11369, 34107, 56845, 102321, 170535, 511605, 2853619, 8560857, 14268095, 25682571, 42804285, 128412855]

約数ペア:

[(1, 128412855), (3, 42804285), (5, 25682571), (9, 14268095), (15, 8560857), (45, 2853619), (251, 511605), (753, 170535), (1255, 102321), (2259, 56845), (3765, 34107), (11295, 11369)]