12989120

素因数分解:

$2^6\times 5^1\times {\mathrm{40591}}^1$

素因数の和:40608

約数の個数: 28

約数和(自身を含む): 30931104

約数和(自身を除く): 17941984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 40591, 81182, 162364, 202955, 324728, 405910, 649456, 811820, 1298912, 1623640, 2597824, 3247280, 6494560, 12989120]

約数ペア:

[(1, 12989120), (2, 6494560), (4, 3247280), (5, 2597824), (8, 1623640), (10, 1298912), (16, 811820), (20, 649456), (32, 405910), (40, 324728), (64, 202955), (80, 162364), (160, 81182), (320, 40591)]