13251019820

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3363203}}^1$

素因数の和:3363409

約数の個数: 24

約数和(自身を含む): 27968404464

約数和(自身を除く): 14717384644

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 3363203, 6726406, 13452812, 16816015, 33632030, 67264060, 662550991, 1325101982, 2650203964, 3312754955, 6625509910, 13251019820]

約数ペア:

[(1, 13251019820), (2, 6625509910), (4, 3312754955), (5, 2650203964), (10, 1325101982), (20, 662550991), (197, 67264060), (394, 33632030), (788, 16816015), (985, 13452812), (1970, 6726406), (3940, 3363203)]