1027260880

素因数分解:

$2^4\times 5^1\times {\mathrm{12840761}}^1$

素因数の和:12840774

約数の個数: 20

約数和(自身を含む): 2388381732

約数和(自身を除く): 1361120852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12840761, 25681522, 51363044, 64203805, 102726088, 128407610, 205452176, 256815220, 513630440, 1027260880]

約数ペア:

[(1, 1027260880), (2, 513630440), (4, 256815220), (5, 205452176), (8, 128407610), (10, 102726088), (16, 64203805), (20, 51363044), (40, 25681522), (80, 12840761)]