19179220

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6899}}^1$

素因数の和:7047

約数の個数: 24

約数和(自身を含む): 40572000

約数和(自身を除く): 21392780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 6899, 13798, 27596, 34495, 68990, 137980, 958961, 1917922, 3835844, 4794805, 9589610, 19179220]

約数ペア:

[(1, 19179220), (2, 9589610), (4, 4794805), (5, 3835844), (10, 1917922), (20, 958961), (139, 137980), (278, 68990), (556, 34495), (695, 27596), (1390, 13798), (2780, 6899)]