2013940

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{997}}^1$

素因数の和:1107

約数の個数: 24

約数和(自身を含む): 4275432

約数和(自身を除く): 2261492

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 997, 1010, 1994, 2020, 3988, 4985, 9970, 19940, 100697, 201394, 402788, 503485, 1006970, 2013940]

約数ペア:

[(1, 2013940), (2, 1006970), (4, 503485), (5, 402788), (10, 201394), (20, 100697), (101, 19940), (202, 9970), (404, 4985), (505, 3988), (997, 2020), (1010, 1994)]