801940

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 1705032

約数和(自身を除く): 903092

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 397, 404, 505, 794, 1010, 1588, 1985, 2020, 3970, 7940, 40097, 80194, 160388, 200485, 400970, 801940]

約数ペア:

[(1, 801940), (2, 400970), (4, 200485), (5, 160388), (10, 80194), (20, 40097), (101, 7940), (202, 3970), (397, 2020), (404, 1985), (505, 1588), (794, 1010)]