1248940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{811}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 3273984

約数和(自身を除く): 2025044

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, 811, 1540, 1622, 3244, 4055, 5677, 8110, 8921, 11354, 16220, 17842, 22708, 28385, 35684, 44605, 56770, 62447, 89210, 113540, 124894, 178420, 249788, 312235, 624470, 1248940]

約数ペア:

[(1, 1248940), (2, 624470), (4, 312235), (5, 249788), (7, 178420), (10, 124894), (11, 113540), (14, 89210), (20, 62447), (22, 56770), (28, 44605), (35, 35684), (44, 28385), (55, 22708), (70, 17842), (77, 16220), (110, 11354), (140, 8921), (154, 8110), (220, 5677), (308, 4055), (385, 3244), (770, 1622), (811, 1540)]