8742580

素因数分解:

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

素因数の和:845

約数の個数: 72

約数和(自身を含む): 23327136

約数和(自身を除く): 14584556

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 811, 980, 1078, 1540, 1622, 2156, 2695, 3244, 4055, 5390, 5677, 8110, 8921, 10780, 11354, 16220, 17842, 22708, 28385, 35684, 39739, 44605, 56770, 62447, 79478, 89210, 113540, 124894, 158956, 178420, 198695, 249788, 312235, 397390, 437129, 624470, 794780, 874258, 1248940, 1748516, 2185645, 4371290, 8742580]

約数ペア:

[(1, 8742580), (2, 4371290), (4, 2185645), (5, 1748516), (7, 1248940), (10, 874258), (11, 794780), (14, 624470), (20, 437129), (22, 397390), (28, 312235), (35, 249788), (44, 198695), (49, 178420), (55, 158956), (70, 124894), (77, 113540), (98, 89210), (110, 79478), (140, 62447), (154, 56770), (196, 44605), (220, 39739), (245, 35684), (308, 28385), (385, 22708), (490, 17842), (539, 16220), (770, 11354), (811, 10780), (980, 8921), (1078, 8110), (1540, 5677), (1622, 5390), (2156, 4055), (2695, 3244)]