18292240

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1669}}^1$

素因数の和:1819

約数の個数: 40

約数和(自身を含む): 42865560

約数和(自身を除く): 24573320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 1669, 2192, 2740, 3338, 5480, 6676, 8345, 10960, 13352, 16690, 26704, 33380, 66760, 133520, 228653, 457306, 914612, 1143265, 1829224, 2286530, 3658448, 4573060, 9146120, 18292240]

約数ペア:

[(1, 18292240), (2, 9146120), (4, 4573060), (5, 3658448), (8, 2286530), (10, 1829224), (16, 1143265), (20, 914612), (40, 457306), (80, 228653), (137, 133520), (274, 66760), (548, 33380), (685, 26704), (1096, 16690), (1370, 13352), (1669, 10960), (2192, 8345), (2740, 6676), (3338, 5480)]