2077889990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18889909}}^1$

素因数の和:18889927

約数の個数: 16

約数和(自身を含む): 4080220560

約数和(自身を除く): 2002330570

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 18889909, 37779818, 94449545, 188899090, 207788999, 415577998, 1038944995, 2077889990]

約数ペア:

[(1, 2077889990), (2, 1038944995), (5, 415577998), (10, 207788999), (11, 188899090), (22, 94449545), (55, 37779818), (110, 18889909)]