1240880

素因数分解:

$2^4\times 5^1\times {\mathrm{15511}}^1$

素因数の和:15524

約数の個数: 20

約数和(自身を含む): 2885232

約数和(自身を除く): 1644352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15511, 31022, 62044, 77555, 124088, 155110, 248176, 310220, 620440, 1240880]

約数ペア:

[(1, 1240880), (2, 620440), (4, 310220), (5, 248176), (8, 155110), (10, 124088), (16, 77555), (20, 62044), (40, 31022), (80, 15511)]