17819780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{757}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 41259456

約数和(自身を除く): 23439676

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 107, 110, 214, 220, 428, 535, 757, 1070, 1177, 1514, 2140, 2354, 3028, 3785, 4708, 5885, 7570, 8327, 11770, 15140, 16654, 23540, 33308, 41635, 80999, 83270, 161998, 166540, 323996, 404995, 809990, 890989, 1619980, 1781978, 3563956, 4454945, 8909890, 17819780]

約数ペア:

[(1, 17819780), (2, 8909890), (4, 4454945), (5, 3563956), (10, 1781978), (11, 1619980), (20, 890989), (22, 809990), (44, 404995), (55, 323996), (107, 166540), (110, 161998), (214, 83270), (220, 80999), (428, 41635), (535, 33308), (757, 23540), (1070, 16654), (1177, 15140), (1514, 11770), (2140, 8327), (2354, 7570), (3028, 5885), (3785, 4708)]