2180984820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{5192821}}^1$

素因数の和:5192840

約数の個数: 48

約数和(自身を含む): 6979152768

約数和(自身を除く): 4798167948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 5192821, 10385642, 15578463, 20771284, 25964105, 31156926, 36349747, 51928210, 62313852, 72699494, 77892315, 103856420, 109049241, 145398988, 155784630, 181748735, 218098482, 311569260, 363497470, 436196964, 545246205, 726994940, 1090492410, 2180984820]

約数ペア:

[(1, 2180984820), (2, 1090492410), (3, 726994940), (4, 545246205), (5, 436196964), (6, 363497470), (7, 311569260), (10, 218098482), (12, 181748735), (14, 155784630), (15, 145398988), (20, 109049241), (21, 103856420), (28, 77892315), (30, 72699494), (35, 62313852), (42, 51928210), (60, 36349747), (70, 31156926), (84, 25964105), (105, 20771284), (140, 15578463), (210, 10385642), (420, 5192821)]