28708495

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^2$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 37549872

約数和(自身を除く): 8841377

約数列:

[1, 5, 17, 67, 71, 85, 335, 355, 1139, 1207, 4757, 5041, 5695, 6035, 23785, 25205, 80869, 85697, 337747, 404345, 428485, 1688735, 5741699, 28708495]

約数ペア:

[(1, 28708495), (5, 5741699), (17, 1688735), (67, 428485), (71, 404345), (85, 337747), (335, 85697), (355, 80869), (1139, 25205), (1207, 23785), (4757, 6035), (5041, 5695)]