2648156740

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1\times {\mathrm{1693}}^1$

素因数の和:2296

約数の個数: 48

約数和(自身を含む): 5606746992

約数和(自身を除く): 2958590252

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 397, 788, 794, 985, 1588, 1693, 1970, 1985, 3386, 3940, 3970, 6772, 7940, 8465, 16930, 33860, 78209, 156418, 312836, 333521, 391045, 667042, 672121, 782090, 1334084, 1344242, 1564180, 1667605, 2688484, 3335210, 3360605, 6670420, 6721210, 13442420, 132407837, 264815674, 529631348, 662039185, 1324078370, 2648156740]

約数ペア:

[(1, 2648156740), (2, 1324078370), (4, 662039185), (5, 529631348), (10, 264815674), (20, 132407837), (197, 13442420), (394, 6721210), (397, 6670420), (788, 3360605), (794, 3335210), (985, 2688484), (1588, 1667605), (1693, 1564180), (1970, 1344242), (1985, 1334084), (3386, 782090), (3940, 672121), (3970, 667042), (6772, 391045), (7940, 333521), (8465, 312836), (16930, 156418), (33860, 78209)]