28284190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{661}}^1$

素因数の和:1068

約数の個数: 32

約数和(自身を含む): 55766880

約数和(自身を除く): 27482690

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 389, 661, 778, 1322, 1945, 3305, 3890, 4279, 6610, 7271, 8558, 14542, 21395, 36355, 42790, 72710, 257129, 514258, 1285645, 2571290, 2828419, 5656838, 14142095, 28284190]

約数ペア:

[(1, 28284190), (2, 14142095), (5, 5656838), (10, 2828419), (11, 2571290), (22, 1285645), (55, 514258), (110, 257129), (389, 72710), (661, 42790), (778, 36355), (1322, 21395), (1945, 14542), (3305, 8558), (3890, 7271), (4279, 6610)]