28638860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{33301}}^1$

素因数の和:33353

約数の個数: 24

約数和(自身を含む): 61542096

約数和(自身を除く): 32903236

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 33301, 66602, 133204, 166505, 333010, 666020, 1431943, 2863886, 5727772, 7159715, 14319430, 28638860]

約数ペア:

[(1, 28638860), (2, 14319430), (4, 7159715), (5, 5727772), (10, 2863886), (20, 1431943), (43, 666020), (86, 333010), (172, 166505), (215, 133204), (430, 66602), (860, 33301)]