320971240

素因数分解:

$2^3\times 5^1\times {\mathrm{8024281}}^1$

素因数の和:8024292

約数の個数: 16

約数和(自身を含む): 722185380

約数和(自身を除く): 401214140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 8024281, 16048562, 32097124, 40121405, 64194248, 80242810, 160485620, 320971240]

約数ペア:

[(1, 320971240), (2, 160485620), (4, 80242810), (5, 64194248), (8, 40121405), (10, 32097124), (20, 16048562), (40, 8024281)]