18928180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{49811}}^1$

素因数の和:49839

約数の個数: 24

約数和(自身を含む): 41842080

約数和(自身を除く): 22913900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 49811, 99622, 199244, 249055, 498110, 946409, 996220, 1892818, 3785636, 4732045, 9464090, 18928180]

約数ペア:

[(1, 18928180), (2, 9464090), (4, 4732045), (5, 3785636), (10, 1892818), (19, 996220), (20, 946409), (38, 498110), (76, 249055), (95, 199244), (190, 99622), (380, 49811)]