2019998180

素因数分解:

$2^2\times 5^1\times {\mathrm{8969}}^1\times {\mathrm{11261}}^1$

素因数の和:20239

約数の個数: 24

約数和(自身を含む): 4242845880

約数和(自身を除く): 2222847700

約数列:

[1, 2, 4, 5, 10, 20, 8969, 11261, 17938, 22522, 35876, 44845, 45044, 56305, 89690, 112610, 179380, 225220, 100999909, 201999818, 403999636, 504999545, 1009999090, 2019998180]

約数ペア:

[(1, 2019998180), (2, 1009999090), (4, 504999545), (5, 403999636), (10, 201999818), (20, 100999909), (8969, 225220), (11261, 179380), (17938, 112610), (22522, 89690), (35876, 56305), (44845, 45044)]