155641780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1111727}}^1$

素因数の和:1111743

約数の個数: 24

約数和(自身を含む): 373540608

約数和(自身を除く): 217898828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1111727, 2223454, 4446908, 5558635, 7782089, 11117270, 15564178, 22234540, 31128356, 38910445, 77820890, 155641780]

約数ペア:

[(1, 155641780), (2, 77820890), (4, 38910445), (5, 31128356), (7, 22234540), (10, 15564178), (14, 11117270), (20, 7782089), (28, 5558635), (35, 4446908), (70, 2223454), (140, 1111727)]