42781720

素因数分解:

$2^3\times 5^1\times {\mathrm{1069543}}^1$

素因数の和:1069554

約数の個数: 16

約数和(自身を含む): 96258960

約数和(自身を除く): 53477240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1069543, 2139086, 4278172, 5347715, 8556344, 10695430, 21390860, 42781720]

約数ペア:

[(1, 42781720), (2, 21390860), (4, 10695430), (5, 8556344), (8, 5347715), (10, 4278172), (20, 2139086), (40, 1069543)]