20296540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8387}}^1$

素因数の和:8418

約数の個数: 36

約数和(自身を含む): 46855368

約数和(自身を除く): 26558828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8387, 16774, 33548, 41935, 83870, 92257, 167740, 184514, 369028, 461285, 922570, 1014827, 1845140, 2029654, 4059308, 5074135, 10148270, 20296540]

約数ペア:

[(1, 20296540), (2, 10148270), (4, 5074135), (5, 4059308), (10, 2029654), (11, 1845140), (20, 1014827), (22, 922570), (44, 461285), (55, 369028), (110, 184514), (121, 167740), (220, 92257), (242, 83870), (484, 41935), (605, 33548), (1210, 16774), (2420, 8387)]