18830540

素因数分解:

$2^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{1399}}^1$

素因数の和:2081

約数の個数: 24

約数和(自身を含む): 39631200

約数和(自身を除く): 20800660

約数列:

[1, 2, 4, 5, 10, 20, 673, 1346, 1399, 2692, 2798, 3365, 5596, 6730, 6995, 13460, 13990, 27980, 941527, 1883054, 3766108, 4707635, 9415270, 18830540]

約数ペア:

[(1, 18830540), (2, 9415270), (4, 4707635), (5, 3766108), (10, 1883054), (20, 941527), (673, 27980), (1346, 13990), (1399, 13460), (2692, 6995), (2798, 6730), (3365, 5596)]