66958840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128767}}^1$

素因数の和:128791

約数の個数: 32

約数和(自身を含む): 162247680

約数和(自身を除く): 95288840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 128767, 257534, 515068, 643835, 1030136, 1287670, 1673971, 2575340, 3347942, 5150680, 6695884, 8369855, 13391768, 16739710, 33479420, 66958840]

約数ペア:

[(1, 66958840), (2, 33479420), (4, 16739710), (5, 13391768), (8, 8369855), (10, 6695884), (13, 5150680), (20, 3347942), (26, 2575340), (40, 1673971), (52, 1287670), (65, 1030136), (104, 643835), (130, 515068), (260, 257534), (520, 128767)]