28611985

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1823}}^1$

素因数の和:1944

約数の個数: 16

約数和(自身を含む): 35633664

約数和(自身を除く): 7021679

約数列:

[1, 5, 43, 73, 215, 365, 1823, 3139, 9115, 15695, 78389, 133079, 391945, 665395, 5722397, 28611985]

約数ペア:

[(1, 28611985), (5, 5722397), (43, 665395), (73, 391945), (215, 133079), (365, 78389), (1823, 15695), (3139, 9115)]