4639240

素因数分解:

$2^3\times 5^1\times {\mathrm{115981}}^1$

素因数の和:115992

約数の個数: 16

約数和(自身を含む): 10438380

約数和(自身を除く): 5799140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 115981, 231962, 463924, 579905, 927848, 1159810, 2319620, 4639240]

約数ペア:

[(1, 4639240), (2, 2319620), (4, 1159810), (5, 927848), (8, 579905), (10, 463924), (20, 231962), (40, 115981)]