79917880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{285421}}^1$

素因数の和:285439

約数の個数: 32

約数和(自身を含む): 205503840

約数和(自身を除く): 125585960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 285421, 570842, 1141684, 1427105, 1997947, 2283368, 2854210, 3995894, 5708420, 7991788, 9989735, 11416840, 15983576, 19979470, 39958940, 79917880]

約数ペア:

[(1, 79917880), (2, 39958940), (4, 19979470), (5, 15983576), (7, 11416840), (8, 9989735), (10, 7991788), (14, 5708420), (20, 3995894), (28, 2854210), (35, 2283368), (40, 1997947), (56, 1427105), (70, 1141684), (140, 570842), (280, 285421)]