219075820

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{55603}}^1$

素因数の和:55809

約数の個数: 24

約数和(自身を含む): 462402864

約数和(自身を除く): 243327044

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 55603, 111206, 222412, 278015, 556030, 1112060, 10953791, 21907582, 43815164, 54768955, 109537910, 219075820]

約数ペア:

[(1, 219075820), (2, 109537910), (4, 54768955), (5, 43815164), (10, 21907582), (20, 10953791), (197, 1112060), (394, 556030), (788, 278015), (985, 222412), (1970, 111206), (3940, 55603)]