78391981

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^3\times {\mathrm{379}}^1$

素因数の和:465

約数の個数: 16

約数和(自身を含む): 87004800

約数和(自身を除く): 8612819

約数列:

[1, 17, 23, 379, 391, 529, 6443, 8717, 8993, 12167, 148189, 200491, 206839, 3408347, 4611293, 78391981]

約数ペア:

[(1, 78391981), (17, 4611293), (23, 3408347), (379, 206839), (391, 200491), (529, 148189), (6443, 12167), (8717, 8993)]