55125680

素因数分解:

$2^4\times 5^1\times {\mathrm{689071}}^1$

素因数の和:689084

約数の個数: 20

約数和(自身を含む): 128167392

約数和(自身を除く): 73041712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 689071, 1378142, 2756284, 3445355, 5512568, 6890710, 11025136, 13781420, 27562840, 55125680]

約数ペア:

[(1, 55125680), (2, 27562840), (4, 13781420), (5, 11025136), (8, 6890710), (10, 5512568), (16, 3445355), (20, 2756284), (40, 1378142), (80, 689071)]