28708090

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{66763}}^1$

素因数の和:66813

約数の個数: 16

約数和(自身を含む): 52877088

約数和(自身を除く): 24168998

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 66763, 133526, 333815, 667630, 2870809, 5741618, 14354045, 28708090]

約数ペア:

[(1, 28708090), (2, 14354045), (5, 5741618), (10, 2870809), (43, 667630), (86, 333815), (215, 133526), (430, 66763)]