27821680

素因数分解:

$2^4\times 5^1\times {\mathrm{347771}}^1$

素因数の和:347784

約数の個数: 20

約数和(自身を含む): 64685592

約数和(自身を除く): 36863912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347771, 695542, 1391084, 1738855, 2782168, 3477710, 5564336, 6955420, 13910840, 27821680]

約数ペア:

[(1, 27821680), (2, 13910840), (4, 6955420), (5, 5564336), (8, 3477710), (10, 2782168), (16, 1738855), (20, 1391084), (40, 695542), (80, 347771)]