25877920

素因数分解:

$2^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1033

約数の個数: 48

約数和(自身を含む): 61521768

約数和(自身を除く): 35643848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 394, 788, 821, 985, 1576, 1642, 1970, 3152, 3284, 3940, 4105, 6304, 6568, 7880, 8210, 13136, 15760, 16420, 26272, 31520, 32840, 65680, 131360, 161737, 323474, 646948, 808685, 1293896, 1617370, 2587792, 3234740, 5175584, 6469480, 12938960, 25877920]

約数ペア:

[(1, 25877920), (2, 12938960), (4, 6469480), (5, 5175584), (8, 3234740), (10, 2587792), (16, 1617370), (20, 1293896), (32, 808685), (40, 646948), (80, 323474), (160, 161737), (197, 131360), (394, 65680), (788, 32840), (821, 31520), (985, 26272), (1576, 16420), (1642, 15760), (1970, 13136), (3152, 8210), (3284, 7880), (3940, 6568), (4105, 6304)]