78126815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{4159}}^1$

素因数の和:4211

約数の個数: 24

約数和(自身を含む): 107278080

約数和(自身を除く): 29151265

約数列:

[1, 5, 13, 17, 65, 85, 221, 289, 1105, 1445, 3757, 4159, 18785, 20795, 54067, 70703, 270335, 353515, 919139, 1201951, 4595695, 6009755, 15625363, 78126815]

約数ペア:

[(1, 78126815), (5, 15625363), (13, 6009755), (17, 4595695), (65, 1201951), (85, 919139), (221, 353515), (289, 270335), (1105, 70703), (1445, 54067), (3757, 20795), (4159, 18785)]