13661680

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{439}}^1$

素因数の和:841

約数の個数: 40

約数和(自身を含む): 31917600

約数和(自身を除く): 18255920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 439, 778, 878, 1556, 1756, 1945, 2195, 3112, 3512, 3890, 4390, 6224, 7024, 7780, 8780, 15560, 17560, 31120, 35120, 170771, 341542, 683084, 853855, 1366168, 1707710, 2732336, 3415420, 6830840, 13661680]

約数ペア:

[(1, 13661680), (2, 6830840), (4, 3415420), (5, 2732336), (8, 1707710), (10, 1366168), (16, 853855), (20, 683084), (40, 341542), (80, 170771), (389, 35120), (439, 31120), (778, 17560), (878, 15560), (1556, 8780), (1756, 7780), (1945, 7024), (2195, 6224), (3112, 4390), (3512, 3890)]