81372990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73309}}^1$

素因数の和:73356

約数の個数: 32

約数和(自身を含む): 200576160

約数和(自身を除く): 119203170

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 185, 222, 370, 555, 1110, 73309, 146618, 219927, 366545, 439854, 733090, 1099635, 2199270, 2712433, 5424866, 8137299, 13562165, 16274598, 27124330, 40686495, 81372990]

約数ペア:

[(1, 81372990), (2, 40686495), (3, 27124330), (5, 16274598), (6, 13562165), (10, 8137299), (15, 5424866), (30, 2712433), (37, 2199270), (74, 1099635), (111, 733090), (185, 439854), (222, 366545), (370, 219927), (555, 146618), (1110, 73309)]