28707785

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{419}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 35199360

約数和(自身を除く): 6491575

約数列:

[1, 5, 71, 193, 355, 419, 965, 2095, 13703, 29749, 68515, 80867, 148745, 404335, 5741557, 28707785]

約数ペア:

[(1, 28707785), (5, 5741557), (71, 404335), (193, 148745), (355, 80867), (419, 68515), (965, 29749), (2095, 13703)]