2013520

素因数分解:

$2^4\times 5^1\times {\mathrm{25169}}^1$

素因数の和:25182

約数の個数: 20

約数和(自身を含む): 4681620

約数和(自身を除く): 2668100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25169, 50338, 100676, 125845, 201352, 251690, 402704, 503380, 1006760, 2013520]

約数ペア:

[(1, 2013520), (2, 1006760), (4, 503380), (5, 402704), (8, 251690), (10, 201352), (16, 125845), (20, 100676), (40, 50338), (80, 25169)]