20159780

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{5569}}^1$

素因数の和:5759

約数の個数: 24

約数和(自身を含む): 42577080

約数和(自身を除く): 22417300

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 5569, 11138, 22276, 27845, 55690, 111380, 1007989, 2015978, 4031956, 5039945, 10079890, 20159780]

約数ペア:

[(1, 20159780), (2, 10079890), (4, 5039945), (5, 4031956), (10, 2015978), (20, 1007989), (181, 111380), (362, 55690), (724, 27845), (905, 22276), (1810, 11138), (3620, 5569)]