87255640

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{4969}}^1$

素因数の和:5419

約数の個数: 32

約数和(自身を含む): 196812000

約数和(自身を除く): 109556360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 2195, 3512, 4390, 4969, 8780, 9938, 17560, 19876, 24845, 39752, 49690, 99380, 198760, 2181391, 4362782, 8725564, 10906955, 17451128, 21813910, 43627820, 87255640]

約数ペア:

[(1, 87255640), (2, 43627820), (4, 21813910), (5, 17451128), (8, 10906955), (10, 8725564), (20, 4362782), (40, 2181391), (439, 198760), (878, 99380), (1756, 49690), (2195, 39752), (3512, 24845), (4390, 19876), (4969, 17560), (8780, 9938)]