28686485

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{4253}}^1$

素因数の和:4348

約数の個数: 16

約数和(自身を含む): 36754560

約数和(自身を除く): 8068075

約数列:

[1, 5, 19, 71, 95, 355, 1349, 4253, 6745, 21265, 80807, 301963, 404035, 1509815, 5737297, 28686485]

約数ペア:

[(1, 28686485), (5, 5737297), (19, 1509815), (71, 404035), (95, 301963), (355, 80807), (1349, 21265), (4253, 6745)]