15961880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{36277}}^1$

素因数の和:36299

約数の個数: 32

約数和(自身を含む): 39180240

約数和(自身を除く): 23218360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 36277, 72554, 145108, 181385, 290216, 362770, 399047, 725540, 798094, 1451080, 1596188, 1995235, 3192376, 3990470, 7980940, 15961880]

約数ペア:

[(1, 15961880), (2, 7980940), (4, 3990470), (5, 3192376), (8, 1995235), (10, 1596188), (11, 1451080), (20, 798094), (22, 725540), (40, 399047), (44, 362770), (55, 290216), (88, 181385), (110, 145108), (220, 72554), (440, 36277)]