128711140

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{28859}}^1$

素因数の和:29091

約数の個数: 24

約数和(自身を含む): 271514880

約数和(自身を除く): 142803740

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 28859, 57718, 115436, 144295, 288590, 577180, 6435557, 12871114, 25742228, 32177785, 64355570, 128711140]

約数ペア:

[(1, 128711140), (2, 64355570), (4, 32177785), (5, 25742228), (10, 12871114), (20, 6435557), (223, 577180), (446, 288590), (892, 144295), (1115, 115436), (2230, 57718), (4460, 28859)]