11111420

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4241}}^1$

素因数の和:4381

約数の個数: 24

約数和(自身を含む): 23517648

約数和(自身を除く): 12406228

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 4241, 8482, 16964, 21205, 42410, 84820, 555571, 1111142, 2222284, 2777855, 5555710, 11111420]

約数ペア:

[(1, 11111420), (2, 5555710), (4, 2777855), (5, 2222284), (10, 1111142), (20, 555571), (131, 84820), (262, 42410), (524, 21205), (655, 16964), (1310, 8482), (2620, 4241)]