80003240

素因数分解:

$2^3\times 5^1\times {\mathrm{2000081}}^1$

素因数の和:2000092

約数の個数: 16

約数和(自身を含む): 180007380

約数和(自身を除く): 100004140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2000081, 4000162, 8000324, 10000405, 16000648, 20000810, 40001620, 80003240]

約数ペア:

[(1, 80003240), (2, 40001620), (4, 20000810), (5, 16000648), (8, 10000405), (10, 8000324), (20, 4000162), (40, 2000081)]