1320678

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{661}}^1$

素因数の和:709

約数の個数: 32

約数和(自身を含む): 3018720

約数和(自身を除く): 1698042

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 661, 666, 999, 1322, 1983, 1998, 3966, 5949, 11898, 17847, 24457, 35694, 48914, 73371, 146742, 220113, 440226, 660339, 1320678]

約数ペア:

[(1, 1320678), (2, 660339), (3, 440226), (6, 220113), (9, 146742), (18, 73371), (27, 48914), (37, 35694), (54, 24457), (74, 17847), (111, 11898), (222, 5949), (333, 3966), (661, 1998), (666, 1983), (999, 1322)]