28945240

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{2557}}^1$

素因数の和:2851

約数の個数: 32

約数和(自身を含む): 65382480

約数和(自身を除く): 36437240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2557, 2830, 5114, 5660, 10228, 11320, 12785, 20456, 25570, 51140, 102280, 723631, 1447262, 2894524, 3618155, 5789048, 7236310, 14472620, 28945240]

約数ペア:

[(1, 28945240), (2, 14472620), (4, 7236310), (5, 5789048), (8, 3618155), (10, 2894524), (20, 1447262), (40, 723631), (283, 102280), (566, 51140), (1132, 25570), (1415, 20456), (2264, 12785), (2557, 11320), (2830, 10228), (5114, 5660)]