121987720

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{10853}}^1$

素因数の和:11145

約数の個数: 32

約数和(自身を含む): 275474520

約数和(自身を除く): 153486800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 10853, 11240, 21706, 43412, 54265, 86824, 108530, 217060, 434120, 3049693, 6099386, 12198772, 15248465, 24397544, 30496930, 60993860, 121987720]

約数ペア:

[(1, 121987720), (2, 60993860), (4, 30496930), (5, 24397544), (8, 15248465), (10, 12198772), (20, 6099386), (40, 3049693), (281, 434120), (562, 217060), (1124, 108530), (1405, 86824), (2248, 54265), (2810, 43412), (5620, 21706), (10853, 11240)]