8021860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5209}}^1$

素因数の和:5236

約数の個数: 48

約数和(自身を含む): 21006720

約数和(自身を除く): 12984860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 5209, 10418, 20836, 26045, 36463, 52090, 57299, 72926, 104180, 114598, 145852, 182315, 229196, 286495, 364630, 401093, 572990, 729260, 802186, 1145980, 1604372, 2005465, 4010930, 8021860]

約数ペア:

[(1, 8021860), (2, 4010930), (4, 2005465), (5, 1604372), (7, 1145980), (10, 802186), (11, 729260), (14, 572990), (20, 401093), (22, 364630), (28, 286495), (35, 229196), (44, 182315), (55, 145852), (70, 114598), (77, 104180), (110, 72926), (140, 57299), (154, 52090), (220, 36463), (308, 26045), (385, 20836), (770, 10418), (1540, 5209)]