68006820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{161921}}^1$

素因数の和:161940

約数の個数: 48

約数和(自身を含む): 217623168

約数和(自身を除く): 149616348

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, 161921, 323842, 485763, 647684, 809605, 971526, 1133447, 1619210, 1943052, 2266894, 2428815, 3238420, 3400341, 4533788, 4857630, 5667235, 6800682, 9715260, 11334470, 13601364, 17001705, 22668940, 34003410, 68006820]

約数ペア:

[(1, 68006820), (2, 34003410), (3, 22668940), (4, 17001705), (5, 13601364), (6, 11334470), (7, 9715260), (10, 6800682), (12, 5667235), (14, 4857630), (15, 4533788), (20, 3400341), (21, 3238420), (28, 2428815), (30, 2266894), (35, 1943052), (42, 1619210), (60, 1133447), (70, 971526), (84, 809605), (105, 647684), (140, 485763), (210, 323842), (420, 161921)]