81391336

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{1607}}^1$

素因数の和:2113

約数の個数: 32

約数和(自身を含む): 164787840

約数和(自身を除く): 83396504

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 487, 974, 1607, 1948, 3214, 3896, 6331, 6428, 12662, 12856, 20891, 25324, 41782, 50648, 83564, 167128, 782609, 1565218, 3130436, 6260872, 10173917, 20347834, 40695668, 81391336]

約数ペア:

[(1, 81391336), (2, 40695668), (4, 20347834), (8, 10173917), (13, 6260872), (26, 3130436), (52, 1565218), (104, 782609), (487, 167128), (974, 83564), (1607, 50648), (1948, 41782), (3214, 25324), (3896, 20891), (6331, 12856), (6428, 12662)]