1339420

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{347}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 2835504

約数和(自身を除く): 1496084

約数列:

[1, 2, 4, 5, 10, 20, 193, 347, 386, 694, 772, 965, 1388, 1735, 1930, 3470, 3860, 6940, 66971, 133942, 267884, 334855, 669710, 1339420]

約数ペア:

[(1, 1339420), (2, 669710), (4, 334855), (5, 267884), (10, 133942), (20, 66971), (193, 6940), (347, 3860), (386, 3470), (694, 1930), (772, 1735), (965, 1388)]