340240

素因数分解:

$2^4\times 5^1\times {\mathrm{4253}}^1$

素因数の和:4266

約数の個数: 20

約数和(自身を含む): 791244

約数和(自身を除く): 451004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4253, 8506, 17012, 21265, 34024, 42530, 68048, 85060, 170120, 340240]

約数ペア:

[(1, 340240), (2, 170120), (4, 85060), (5, 68048), (8, 42530), (10, 34024), (16, 21265), (20, 17012), (40, 8506), (80, 4253)]