196354780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{90071}}^1$

素因数の和:90189

約数の個数: 24

約数和(自身を含む): 416132640

約数和(自身を除く): 219777860

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 90071, 180142, 360284, 450355, 900710, 1801420, 9817739, 19635478, 39270956, 49088695, 98177390, 196354780]

約数ペア:

[(1, 196354780), (2, 98177390), (4, 49088695), (5, 39270956), (10, 19635478), (20, 9817739), (109, 1801420), (218, 900710), (436, 450355), (545, 360284), (1090, 180142), (2180, 90071)]