1661680

素因数分解:

$2^4\times 5^1\times {\mathrm{20771}}^1$

素因数の和:20784

約数の個数: 20

約数和(自身を含む): 3863592

約数和(自身を除く): 2201912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 20771, 41542, 83084, 103855, 166168, 207710, 332336, 415420, 830840, 1661680]

約数ペア:

[(1, 1661680), (2, 830840), (4, 415420), (5, 332336), (8, 207710), (10, 166168), (16, 103855), (20, 83084), (40, 41542), (80, 20771)]