111551420

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{12941}}^1$

素因数の和:13381

約数の個数: 24

約数和(自身を含む): 234819648

約数和(自身を除く): 123268228

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620, 12941, 25882, 51764, 64705, 129410, 258820, 5577571, 11155142, 22310284, 27887855, 55775710, 111551420]

約数ペア:

[(1, 111551420), (2, 55775710), (4, 27887855), (5, 22310284), (10, 11155142), (20, 5577571), (431, 258820), (862, 129410), (1724, 64705), (2155, 51764), (4310, 25882), (8620, 12941)]