20538056

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{433}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 49352310

約数和(自身を除く): 28814254

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 121, 154, 196, 242, 308, 392, 433, 484, 539, 616, 847, 866, 968, 1078, 1694, 1732, 2156, 3031, 3388, 3464, 4312, 4763, 5929, 6062, 6776, 9526, 11858, 12124, 19052, 21217, 23716, 24248, 33341, 38104, 42434, 47432, 52393, 66682, 84868, 104786, 133364, 169736, 209572, 233387, 266728, 366751, 419144, 466774, 733502, 933548, 1467004, 1867096, 2567257, 2934008, 5134514, 10269028, 20538056]

約数ペア:

[(1, 20538056), (2, 10269028), (4, 5134514), (7, 2934008), (8, 2567257), (11, 1867096), (14, 1467004), (22, 933548), (28, 733502), (44, 466774), (49, 419144), (56, 366751), (77, 266728), (88, 233387), (98, 209572), (121, 169736), (154, 133364), (196, 104786), (242, 84868), (308, 66682), (392, 52393), (433, 47432), (484, 42434), (539, 38104), (616, 33341), (847, 24248), (866, 23716), (968, 21217), (1078, 19052), (1694, 12124), (1732, 11858), (2156, 9526), (3031, 6776), (3388, 6062), (3464, 5929), (4312, 4763)]