2581648

素因数分解:

$2^4\times {\mathrm{317}}^1\times {\mathrm{509}}^1$

素因数の和:834

約数の個数: 20

約数和(自身を含む): 5027580

約数和(自身を除く): 2445932

約数列:

[1, 2, 4, 8, 16, 317, 509, 634, 1018, 1268, 2036, 2536, 4072, 5072, 8144, 161353, 322706, 645412, 1290824, 2581648]

約数ペア:

[(1, 2581648), (2, 1290824), (4, 645412), (8, 322706), (16, 161353), (317, 8144), (509, 5072), (634, 4072), (1018, 2536), (1268, 2036)]