2497880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{811}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 7015680

約数和(自身を除く): 4517800

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, 811, 1540, 1622, 3080, 3244, 4055, 5677, 6488, 8110, 8921, 11354, 16220, 17842, 22708, 28385, 32440, 35684, 44605, 45416, 56770, 62447, 71368, 89210, 113540, 124894, 178420, 227080, 249788, 312235, 356840, 499576, 624470, 1248940, 2497880]

約数ペア:

[(1, 2497880), (2, 1248940), (4, 624470), (5, 499576), (7, 356840), (8, 312235), (10, 249788), (11, 227080), (14, 178420), (20, 124894), (22, 113540), (28, 89210), (35, 71368), (40, 62447), (44, 56770), (55, 45416), (56, 44605), (70, 35684), (77, 32440), (88, 28385), (110, 22708), (140, 17842), (154, 16220), (220, 11354), (280, 8921), (308, 8110), (385, 6488), (440, 5677), (616, 4055), (770, 3244), (811, 3080), (1540, 1622)]