80438840

素因数分解:

$2^3\times 5^1\times {\mathrm{2010971}}^1$

素因数の和:2010982

約数の個数: 16

約数和(自身を含む): 180987480

約数和(自身を除く): 100548640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2010971, 4021942, 8043884, 10054855, 16087768, 20109710, 40219420, 80438840]

約数ペア:

[(1, 80438840), (2, 40219420), (4, 20109710), (5, 16087768), (8, 10054855), (10, 8043884), (20, 4021942), (40, 2010971)]