137719780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{56909}}^1$

素因数の和:56940

約数の個数: 36

約数和(自身を含む): 317899260

約数和(自身を除く): 180179480

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 56909, 113818, 227636, 284545, 569090, 625999, 1138180, 1251998, 2503996, 3129995, 6259990, 6885989, 12519980, 13771978, 27543956, 34429945, 68859890, 137719780]

約数ペア:

[(1, 137719780), (2, 68859890), (4, 34429945), (5, 27543956), (10, 13771978), (11, 12519980), (20, 6885989), (22, 6259990), (44, 3129995), (55, 2503996), (110, 1251998), (121, 1138180), (220, 625999), (242, 569090), (484, 284545), (605, 227636), (1210, 113818), (2420, 56909)]