66715880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21661}}^1$

素因数の和:21690

約数の個数: 64

約数和(自身を含む): 187159680

約数和(自身を除く): 120443800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 21661, 43322, 86644, 108305, 151627, 173288, 216610, 238271, 303254, 433220, 476542, 606508, 758135, 866440, 953084, 1191355, 1213016, 1516270, 1667897, 1906168, 2382710, 3032540, 3335794, 4765420, 6065080, 6671588, 8339485, 9530840, 13343176, 16678970, 33357940, 66715880]

約数ペア:

[(1, 66715880), (2, 33357940), (4, 16678970), (5, 13343176), (7, 9530840), (8, 8339485), (10, 6671588), (11, 6065080), (14, 4765420), (20, 3335794), (22, 3032540), (28, 2382710), (35, 1906168), (40, 1667897), (44, 1516270), (55, 1213016), (56, 1191355), (70, 953084), (77, 866440), (88, 758135), (110, 606508), (140, 476542), (154, 433220), (220, 303254), (280, 238271), (308, 216610), (385, 173288), (440, 151627), (616, 108305), (770, 86644), (1540, 43322), (3080, 21661)]