1263280

素因数分解:

$2^4\times 5^1\times {\mathrm{15791}}^1$

素因数の和:15804

約数の個数: 20

約数和(自身を含む): 2937312

約数和(自身を除く): 1674032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15791, 31582, 63164, 78955, 126328, 157910, 252656, 315820, 631640, 1263280]

約数ペア:

[(1, 1263280), (2, 631640), (4, 315820), (5, 252656), (8, 157910), (10, 126328), (16, 78955), (20, 63164), (40, 31582), (80, 15791)]