13181680

素因数分解:

$2^4\times 5^1\times {\mathrm{164771}}^1$

素因数の和:164784

約数の個数: 20

約数和(自身を含む): 30647592

約数和(自身を除く): 17465912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 164771, 329542, 659084, 823855, 1318168, 1647710, 2636336, 3295420, 6590840, 13181680]

約数ペア:

[(1, 13181680), (2, 6590840), (4, 3295420), (5, 2636336), (8, 1647710), (10, 1318168), (16, 823855), (20, 659084), (40, 329542), (80, 164771)]