1320640

素因数分解:

$2^6\times 5^1\times {\mathrm{4127}}^1$

素因数の和:4144

約数の個数: 28

約数和(自身を含む): 3145536

約数和(自身を除く): 1824896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 4127, 8254, 16508, 20635, 33016, 41270, 66032, 82540, 132064, 165080, 264128, 330160, 660320, 1320640]

約数ペア:

[(1, 1320640), (2, 660320), (4, 330160), (5, 264128), (8, 165080), (10, 132064), (16, 82540), (20, 66032), (32, 41270), (40, 33016), (64, 20635), (80, 16508), (160, 8254), (320, 4127)]