2821040

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:389

約数の個数: 40

約数和(自身を含む): 6629040

約数和(自身を除く): 3808000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 197, 358, 394, 716, 788, 895, 985, 1432, 1576, 1790, 1970, 2864, 3152, 3580, 3940, 7160, 7880, 14320, 15760, 35263, 70526, 141052, 176315, 282104, 352630, 564208, 705260, 1410520, 2821040]

約数ペア:

[(1, 2821040), (2, 1410520), (4, 705260), (5, 564208), (8, 352630), (10, 282104), (16, 176315), (20, 141052), (40, 70526), (80, 35263), (179, 15760), (197, 14320), (358, 7880), (394, 7160), (716, 3940), (788, 3580), (895, 3152), (985, 2864), (1432, 1970), (1576, 1790)]