1280609110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11641901}}^1$

素因数の和:11641919

約数の個数: 16

約数和(自身を含む): 2514650832

約数和(自身を除く): 1234041722

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 11641901, 23283802, 58209505, 116419010, 128060911, 256121822, 640304555, 1280609110]

約数ペア:

[(1, 1280609110), (2, 640304555), (5, 256121822), (10, 128060911), (11, 116419010), (22, 58209505), (55, 23283802), (110, 11641901)]