66878138

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{211}}^1\times {\mathrm{439}}^1$

素因数の和:690

約数の個数: 24

約数和(自身を含む): 106619040

約数和(自身を除く): 39740902

約数列:

[1, 2, 19, 38, 211, 361, 422, 439, 722, 878, 4009, 8018, 8341, 16682, 76171, 92629, 152342, 158479, 185258, 316958, 1759951, 3519902, 33439069, 66878138]

約数ペア:

[(1, 66878138), (2, 33439069), (19, 3519902), (38, 1759951), (211, 316958), (361, 185258), (422, 158479), (439, 152342), (722, 92629), (878, 76171), (4009, 16682), (8018, 8341)]