28743280

素因数分解:

$2^4\times 5^1\times {\mathrm{359291}}^1$

素因数の和:359304

約数の個数: 20

約数和(自身を含む): 66828312

約数和(自身を除く): 38085032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 359291, 718582, 1437164, 1796455, 2874328, 3592910, 5748656, 7185820, 14371640, 28743280]

約数ペア:

[(1, 28743280), (2, 14371640), (4, 7185820), (5, 5748656), (8, 3592910), (10, 2874328), (16, 1796455), (20, 1437164), (40, 718582), (80, 359291)]