160828400

素因数分解:

$2^4\times 5^2\times {\mathrm{402071}}^1$

素因数の和:402089

約数の個数: 30

約数和(自身を含む): 386391192

約数和(自身を除く): 225562792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 402071, 804142, 1608284, 2010355, 3216568, 4020710, 6433136, 8041420, 10051775, 16082840, 20103550, 32165680, 40207100, 80414200, 160828400]

約数ペア:

[(1, 160828400), (2, 80414200), (4, 40207100), (5, 32165680), (8, 20103550), (10, 16082840), (16, 10051775), (20, 8041420), (25, 6433136), (40, 4020710), (50, 3216568), (80, 2010355), (100, 1608284), (200, 804142), (400, 402071)]