1643240

素因数分解:

$2^3\times 5^1\times {\mathrm{41081}}^1$

素因数の和:41092

約数の個数: 16

約数和(自身を含む): 3697380

約数和(自身を除く): 2054140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41081, 82162, 164324, 205405, 328648, 410810, 821620, 1643240]

約数ペア:

[(1, 1643240), (2, 821620), (4, 410810), (5, 328648), (8, 205405), (10, 164324), (20, 82162), (40, 41081)]