398913985

素因数分解:

$5^1\times {\mathrm{127}}^1\times {\mathrm{643}}^1\times {\mathrm{977}}^1$

素因数の和:1752

約数の個数: 16

約数和(自身を含む): 483710976

約数和(自身を除く): 84796991

約数列:

[1, 5, 127, 635, 643, 977, 3215, 4885, 81661, 124079, 408305, 620395, 628211, 3141055, 79782797, 398913985]

約数ペア:

[(1, 398913985), (5, 79782797), (127, 3141055), (635, 628211), (643, 620395), (977, 408305), (3215, 124079), (4885, 81661)]