15887440

素因数分解:

$2^4\times 5^1\times {\mathrm{198593}}^1$

素因数の和:198606

約数の個数: 20

約数和(自身を含む): 36938484

約数和(自身を除く): 21051044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 198593, 397186, 794372, 992965, 1588744, 1985930, 3177488, 3971860, 7943720, 15887440]

約数ペア:

[(1, 15887440), (2, 7943720), (4, 3971860), (5, 3177488), (8, 1985930), (10, 1588744), (16, 992965), (20, 794372), (40, 397186), (80, 198593)]