20373980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8419}}^1$

素因数の和:8450

約数の個数: 36

約数和(自身を含む): 47034120

約数和(自身を除く): 26660140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8419, 16838, 33676, 42095, 84190, 92609, 168380, 185218, 370436, 463045, 926090, 1018699, 1852180, 2037398, 4074796, 5093495, 10186990, 20373980]

約数ペア:

[(1, 20373980), (2, 10186990), (4, 5093495), (5, 4074796), (10, 2037398), (11, 1852180), (20, 1018699), (22, 926090), (44, 463045), (55, 370436), (110, 185218), (121, 168380), (220, 92609), (242, 84190), (484, 42095), (605, 33676), (1210, 16838), (2420, 8419)]