2505860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2557}}^1$

素因数の和:2580

約数の個数: 36

約数和(自身を含む): 6123852

約数和(自身を除く): 3617992

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2557, 5114, 10228, 12785, 17899, 25570, 35798, 51140, 71596, 89495, 125293, 178990, 250586, 357980, 501172, 626465, 1252930, 2505860]

約数ペア:

[(1, 2505860), (2, 1252930), (4, 626465), (5, 501172), (7, 357980), (10, 250586), (14, 178990), (20, 125293), (28, 89495), (35, 71596), (49, 51140), (70, 35798), (98, 25570), (140, 17899), (196, 12785), (245, 10228), (490, 5114), (980, 2557)]