1270000

素因数分解:

$2^4\times 5^4\times {\mathrm{127}}^1$

素因数の和:155

約数の個数: 50

約数和(自身を含む): 3099008

約数和(自身を除く): 1829008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 127, 200, 250, 254, 400, 500, 508, 625, 635, 1000, 1016, 1250, 1270, 2000, 2032, 2500, 2540, 3175, 5000, 5080, 6350, 10000, 10160, 12700, 15875, 25400, 31750, 50800, 63500, 79375, 127000, 158750, 254000, 317500, 635000, 1270000]

約数ペア:

[(1, 1270000), (2, 635000), (4, 317500), (5, 254000), (8, 158750), (10, 127000), (16, 79375), (20, 63500), (25, 50800), (40, 31750), (50, 25400), (80, 15875), (100, 12700), (125, 10160), (127, 10000), (200, 6350), (250, 5080), (254, 5000), (400, 3175), (500, 2540), (508, 2500), (625, 2032), (635, 2000), (1000, 1270), (1016, 1250)]