639870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1$

素因数の和:305

約数の個数: 64

約数和(自身を含む): 1921536

約数和(自身を除く): 1281666

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 105, 110, 154, 165, 210, 231, 277, 330, 385, 462, 554, 770, 831, 1155, 1385, 1662, 1939, 2310, 2770, 3047, 3878, 4155, 5817, 6094, 8310, 9141, 9695, 11634, 15235, 18282, 19390, 21329, 29085, 30470, 42658, 45705, 58170, 63987, 91410, 106645, 127974, 213290, 319935, 639870]

約数ペア:

[(1, 639870), (2, 319935), (3, 213290), (5, 127974), (6, 106645), (7, 91410), (10, 63987), (11, 58170), (14, 45705), (15, 42658), (21, 30470), (22, 29085), (30, 21329), (33, 19390), (35, 18282), (42, 15235), (55, 11634), (66, 9695), (70, 9141), (77, 8310), (105, 6094), (110, 5817), (154, 4155), (165, 3878), (210, 3047), (231, 2770), (277, 2310), (330, 1939), (385, 1662), (462, 1385), (554, 1155), (770, 831)]