4139780

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{461}}^1$

素因数の和:919

約数の個数: 24

約数和(自身を含む): 8731800

約数和(自身を除く): 4592020

約数列:

[1, 2, 4, 5, 10, 20, 449, 461, 898, 922, 1796, 1844, 2245, 2305, 4490, 4610, 8980, 9220, 206989, 413978, 827956, 1034945, 2069890, 4139780]

約数ペア:

[(1, 4139780), (2, 2069890), (4, 1034945), (5, 827956), (10, 413978), (20, 206989), (449, 9220), (461, 8980), (898, 4610), (922, 4490), (1796, 2305), (1844, 2245)]