20163955312

素因数分解:

$2^4\times {\mathrm{643}}^1\times {\mathrm{1959949}}^1$

素因数の和:1960600

約数の個数: 20

約数和(自身を含む): 39128441800

約数和(自身を除く): 18964486488

約数列:

[1, 2, 4, 8, 16, 643, 1286, 2572, 5144, 10288, 1959949, 3919898, 7839796, 15679592, 31359184, 1260247207, 2520494414, 5040988828, 10081977656, 20163955312]

約数ペア:

[(1, 20163955312), (2, 10081977656), (4, 5040988828), (8, 2520494414), (16, 1260247207), (643, 31359184), (1286, 15679592), (2572, 7839796), (5144, 3919898), (10288, 1959949)]