129356780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{923977}}^1$

素因数の和:923993

約数の個数: 24

約数和(自身を含む): 310456608

約数和(自身を除く): 181099828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 923977, 1847954, 3695908, 4619885, 6467839, 9239770, 12935678, 18479540, 25871356, 32339195, 64678390, 129356780]

約数ペア:

[(1, 129356780), (2, 64678390), (4, 32339195), (5, 25871356), (7, 18479540), (10, 12935678), (14, 9239770), (20, 6467839), (28, 4619885), (35, 3695908), (70, 1847954), (140, 923977)]