28978640

素因数分解:

$2^4\times 5^1\times {\mathrm{362233}}^1$

素因数の和:362246

約数の個数: 20

約数和(自身を含む): 67375524

約数和(自身を除く): 38396884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 362233, 724466, 1448932, 1811165, 2897864, 3622330, 5795728, 7244660, 14489320, 28978640]

約数ペア:

[(1, 28978640), (2, 14489320), (4, 7244660), (5, 5795728), (8, 3622330), (10, 2897864), (16, 1811165), (20, 1448932), (40, 724466), (80, 362233)]