289771945

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{42961}}^1$

素因数の和:43056

約数の個数: 16

約数和(自身を含む): 371191680

約数和(自身を除く): 81419735

約数列:

[1, 5, 19, 71, 95, 355, 1349, 6745, 42961, 214805, 816259, 3050231, 4081295, 15251155, 57954389, 289771945]

約数ペア:

[(1, 289771945), (5, 57954389), (19, 15251155), (71, 4081295), (95, 3050231), (355, 816259), (1349, 214805), (6745, 42961)]