18886270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1109}}^1$

素因数の和:1260

約数の個数: 32

約数和(自身を含む): 36923040

約数和(自身を除く): 18036770

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 262, 655, 1109, 1310, 1703, 2218, 3406, 5545, 8515, 11090, 14417, 17030, 28834, 72085, 144170, 145279, 290558, 726395, 1452790, 1888627, 3777254, 9443135, 18886270]

約数ペア:

[(1, 18886270), (2, 9443135), (5, 3777254), (10, 1888627), (13, 1452790), (26, 726395), (65, 290558), (130, 145279), (131, 144170), (262, 72085), (655, 28834), (1109, 17030), (1310, 14417), (1703, 11090), (2218, 8515), (3406, 5545)]