28999985

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43609}}^1$

素因数の和:43640

約数の個数: 16

約数和(自身を含む): 41865600

約数和(自身を除く): 12865615

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 43609, 218045, 305263, 828571, 1526315, 4142855, 5799997, 28999985]

約数ペア:

[(1, 28999985), (5, 5799997), (7, 4142855), (19, 1526315), (35, 828571), (95, 305263), (133, 218045), (665, 43609)]