4779220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1213}}^1$

素因数の和:1419

約数の個数: 24

約数和(自身を含む): 10095624

約数和(自身を除く): 5316404

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1213, 1970, 2426, 3940, 4852, 6065, 12130, 24260, 238961, 477922, 955844, 1194805, 2389610, 4779220]

約数ペア:

[(1, 4779220), (2, 2389610), (4, 1194805), (5, 955844), (10, 477922), (20, 238961), (197, 24260), (394, 12130), (788, 6065), (985, 4852), (1213, 3940), (1970, 2426)]