28198540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32789}}^1$

素因数の和:32841

約数の個数: 24

約数和(自身を含む): 60595920

約数和(自身を除く): 32397380

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 32789, 65578, 131156, 163945, 327890, 655780, 1409927, 2819854, 5639708, 7049635, 14099270, 28198540]

約数ペア:

[(1, 28198540), (2, 14099270), (4, 7049635), (5, 5639708), (10, 2819854), (20, 1409927), (43, 655780), (86, 327890), (172, 163945), (215, 131156), (430, 65578), (860, 32789)]