1388380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 3419136

約数和(自身を除く): 2030756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 211, 235, 329, 422, 470, 658, 844, 940, 1055, 1316, 1477, 1645, 2110, 2954, 3290, 4220, 5908, 6580, 7385, 9917, 14770, 19834, 29540, 39668, 49585, 69419, 99170, 138838, 198340, 277676, 347095, 694190, 1388380]

約数ペア:

[(1, 1388380), (2, 694190), (4, 347095), (5, 277676), (7, 198340), (10, 138838), (14, 99170), (20, 69419), (28, 49585), (35, 39668), (47, 29540), (70, 19834), (94, 14770), (140, 9917), (188, 7385), (211, 6580), (235, 5908), (329, 4220), (422, 3290), (470, 2954), (658, 2110), (844, 1645), (940, 1477), (1055, 1316)]